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Maths Quotes

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srishti dhameja

You can only find truth with logic if you have already found truth without it.

Gilbert Keith Chesterton

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(6 Days ago) "Other"

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(6 Days ago) "Other"

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(12 Days ago) "Other"

A field has 4 gates, in how many ways is it possible to enter the field by one gate and come out at another?

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(2 Months ago) "Other"

Hey, I am a student starting to prepare for placements can someone guide me on how to start preparing for aptitude

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(3 Months ago) "Other"

Two cars with speed of 15 kmph and 30 kmph respectively are 100 km apart and face each other. The distance between them 5 minutes before crossing is
1. 2.75
2. 3.75
3. 4.75
4. 5.75
Answer: 3.75

Explanation:
their relative speed will be = 15+30 = 45 kmph.
As the two cars are moving towards each other,

Reply Like? Yes | No (1)

(3 Months ago) "Other"

Two numbers are in the ratio of 2:9. If their H. C. F. is 19, numbers are:
1. 6, 27
2. 8, 36
3. 38, 171
4. 20, 90
Answer: 38,171

Explanation:
Let the numbers be 2X and 9X
Then their H.C.F. is X, so X = 19
∴ Numbers are (2×19 and 9×19) i.e. 38 and 171

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(3 Months ago) "Other"

If the average of four consecutive odd numbers is 12, find the smallest of these numbers?
1. 5
2. 7
3. 9
4. 11
Answer: 9

Explanation:
Let the numbers be x, x+2, x+4 and x+6
Then (x + x + 2 + x + 4 + x + 6)/4 = 12
∴ 4x + 12 = 48
∴ x = 9

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(3 Months ago) "Other"

Which is not the prime number?.
1. 43
2. 57
3. 73
4. 101
Answer: 57

Explanation:
A positive natural number is called prime number if nothing divides it except the number itself and 1.
57 is not a prime number as it is divisible by 3 and 19 also, apart from 1 and 57.

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(3 Months ago) "Other"

5. In an IPL match, the current run rate of CSK is 4.5 in 6 overs. What should be the required run rate of CSK inorder to achieve the target of 153 against KKR?
1. 7
2. 8
3. 8.5
4. 9
Answer: 9

Explanation:
Current run rate = 4.5 in 6 overs
Runs already made = 4.5 * 6 = 27
Target = 153
Runs still required = 153 – 27 = 126
Overs left = 14
Therefore required run rate = 126 / 14 = 9

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(3 Months ago) "Other"

Sita can complete a work in 10 days. Geeta is 25% more efficient than Sita and Rita is 60% more efficient than Geeta. In how many days will all three of them together complete that work?

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(4 Months ago) "Other"

A secret can be said by only 2 persons in 5 minutes. The same person tells the secret to 2 more persons and so on. How long will take to tell it to tell 768 persons?

a) 500 min

b) 50 min

c) 47.5 min

d) 49 min

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to (4 Months ago) "Other"

Hello Saurabh Bhan, I Have Problem Releted With Math. because My Math is So Week. you Can Help Me..... Contact: manofpowerx@gmail.com

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(4 Months ago) "Other"

Choose the correct option.

Options

A language has 28 different letters in total. Each word in the language consists of a maximum of 7 letters. A programmer wants to create a data type to store a word of this language. She decides to store the word as an array of letters. How many bits should she assign to the data type to store all kinds of words of the language?

7

35

28

196

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(4 Months ago) "Other"

A basket ball is dropped from a height of 20 feet. It bounces back each time to a height which is one half of the height of the last bounce. How far approximately will the ball have travelled before it comes to rest?

30 feet

O40 feet

O 60 feet

can not be determined

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(6 Months ago) "Other"

A boat goes 8 km upstream in 24 minutes. The speed of stream is 4 km/hr. The speed of boat in still water is:

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(5 Months ago)

upstream speed=8*60/24
upstream speed=20km/hr
therefore still water speed=20+4=24km/hr.
ans=24km/hr

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(6 Months ago) "Other"

1. 8, 7, 10, 21, 68, x

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(7 Months ago) "Other"

A person went with flowers for worship to Three temples and offered same flowers at each temple. He purchased enough flowers before entering the gate of each temple to make the number he had with him become double, the first, second, and third temple. The number of flowers offered at each temple was same and he had no flowers remaining with him after offering at the Third temple. He started with how many flowers and How many flowers offered to each temple?

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(8 Months ago) "Other"

Rs 8000 was divided among 5 men, 8 women and 10 boys, such that the ratio of the shares of men, women, and boys is 17:12:11. What is the share of the boy?

a) Rs. 220

b) Rs. 480

c) Rs. 300

d) Rs. 680

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(8 Months ago) "Other"

Question Number 14 Three identical jugs are each half filled with sugar solution, each of different concentration. When the content of the third jag is divided into two halves and rach half is poured into each of the first two jugs, the concentration of sugar in the first jug decreases by 20% and that in second jug increases by 10%. What is the ratio of initial quantity of sugar in the first jug to that in the second jug?

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(10 Months ago) "Other"

The 'digital sum' of the year 1947 is 1+9+4+7 = 21, and 21 is not a perfect square. How many years 1800 and 1999 have a square 'digital sum'?

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(1 year ago) "Other"

(i) X, Y, Z, P and Rare sitting in a row in front of a camera. (ii) X is on the left of the person sitting in the centre, but is on the right of Y. (iii) Z is on the right of P and R is on the right of Z. (iv) R is the second person from the person sitting in the centre Who is between X and 2?

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(1 year ago) "Other"

The square of a two digit number is divided by half the number. After 36 is added to the quotient, this sum is then divided by 2. The digits of the resulting number are the same as those in the original number, but they are in reverse order. How many numbers fulfill the above criteria?

21

24

02

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(1 year ago) "Other"

Directions for questions Treat each question independently.

2 rice varieties costing Rs 25 per kg and Rs 35 per kg were mixed in the ratio 2: 3 and sold so as to gain 20%. What was the SP of the mixture (Rs/kg)?

37.2

028.6

30

32

40.5

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to (1 year ago) "Other"

Is Java a pure object-oriented language?

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(1 year ago) "Other"

Shanti's school normally FINISHES AT 4 PM. her mom drives from home to pick her up, reaching the school exactly at 4 pm. one day, a half holiday is announced and the School finishes for the day at 1 pm. Rather than sitting and Waiting , Shanti decides to start walking towards home. Her mother meets her along the way and as a result they reach home an hour earlier than normal. what is the ratio of the Shanti's walking speed to her mother's driving Speed?

Reply Like? Yes (2) | No

(1 year ago) "Other"

Consider the series given below:

CQZYXJOVAETXMPBWFQNRBEVWC

In the given series, which one of the letter given in options will be the fourth to the left of fifth to the right of ninth to the left of fifth to the right of fourteenth from the right end?

V

A

F

Settings

Reply Like? Yes (18) | No (2)

(1 year ago) "Other"

Question Number 8

If 49,000,000 has K' odd divisors, How many odd divisors does the number 21,000,000 have?

2

O4 4 /3^ * K

2 ^ * K

7 /3^ * K

1 /2^ * K

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(1 year ago) "Other"

P sells an article to Q at 10% profit. If P purchased it at 10% less and dispose off it for Rs 2 less, then P would have profit of 16 (2/3)%. At what price did P purchase the article ?

what is the answer of it

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(1 year ago) "Other"

Rashed can stuff advertising circulars into envelopes at the rate of 45 envelopes per minute and Reena require a minute and a half to stuff the same number of envelopes. Working together, how long will it take Rashed and Reena to stuff 300 envelopes?

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(1 year ago) "Other"

Find the interest on Rs.1000 at 5% for 10 years

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(1 year ago)

interest for 1 year =1000(5/100)=50
interest for 10 years= 10(50)=500

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(1 year ago) "Other"

Either Himesh or Mika has more than 100 songs on their respective i-pods. It is also noticed that one of them has at least 150% and at most 250% of what the other has. What is the minimum number of songs that the two could have put together?

168

167

141

127

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(1 year ago) "Other"

The sum of the number of factors of N and that of N2 is 34. If N< 150, how many values can N have?

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(1 year ago) "Other"

The circle O having a diameter of 2cm, has a square inscribed in it. Each side of the square is then taken as a diameter to form 4 smaller circles O". Find the total area of all four O" circles which is outside the circle 0.

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(1 year ago) "Other"

3,4,12,45,196__
a. 1100 b.1005 c.1005 d.1092

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(1 year ago)

3x1 + 1^2 = 4
4x2 + 2^2 = 12
12x3 + 3^2 = 45
45x4 + 4^2 = 196
196x5 + 5^2 = 1005 (Correct Option c)

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(1 year ago) "Other"

The greatest r digit number abcd which when divided by 10,15,and 35

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(1 year ago) "Other"

20 रुपये में 20 किलो
मछली 1 किलो मछली 20 रुपये
1 किलो प्याज 1 रुपये
1 किलो चीनी 25 पैसे के साथ खरीदना है..आपको हर एक खरीदना चाहिए ताकि कुल वजन 20 किलो हो जाए आपके पास 20 रुपये हैं

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(2 years ago) "Other"

😀 😃 😄 😁 😆 😅 😂 🤣 🥲 🥹 ☺️ 😊 😇 🙂 🙃 😉 😌 😍 🥰 😘 😗 😙 😚 😋 😛 😝 😜 🤪 🤨 🧐 🤓 😎 🥸 🤩 🥳 😏 😒 😞 😔 😟 😕 🙁 ☹️ 😣 😖 😫 😩 🥺 😢 😭 😮‍💨 😤 😠 😡 🤬 🤯 😳 🥵 🥶 😱 😨 😰 😥 😓 🫣 🤗 🫡 🤔 🫢 🤭 🤫 🤥 😶 😶‍🌫️ 😐 😑 😬 🫠 🙄 😯 😦 😧 😮 😲 🥱 😴 🤤 😪 😵 😵‍💫 🫥 🤐 🥴 🤢 🤮 🤧 😷 🤒 🤕 🤑 🤠 😈 👿 👹 👺 🤡 💩 👻 💀 ☠️ 👽 👾 🤖 🎃 😺 😸 😹 😻 😼 😽 🙀 😿 😾

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(2 years ago) "Other"

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(2 years ago) "Other"

ARe you a nerd yes or no?

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(2 years ago) "Other"

DO you like math?

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(2 years ago) "Other"

sukywukymywukysuky

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to (2 years ago) "Other"

let us discuss the known math problem ma psy so whet

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(2 years ago) "Other"

Guys i really need help with 1+1+1= x like wtf is x supposed to mean

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to (2 years ago) "Other"

100 students appeared for two examination. 60 passed the first, 50 passed the second and 30 passed the both. Find the probability that a student selected at random had failed in both the examination?

(A) 1/5 (B) 1/7 (C) 5/7 (D) 5/6

Reply Like? Yes (1) | No (2)

(2 years ago)

Number of passed only in 1st = 60-30 = 30
Number of passed only in 2nd = 50-30 = 20
Total passed atleast in one exam = 30 + 20 + 30 = 80
Total failed in both = 100 - 80 = 20
Therefore required probability = 20/100 = 1/5

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(2 years ago)

Both failed =100-(60+50-30)=20
Probability=20/100=1/5

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(2 years ago) "Other"

How many of the first 1200 natural numbers are either prime to 6 or to 15?

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(2 years ago) "Other"

Two friends decide

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(2 years ago)

Two friends decide to get together; so they start riding bikes towards each other. They plan to meet halfway. Each is riding at 6 MPH. They live 36 miles apart. One of them has a pet carrier pigeon and it starts flying the instant the friends start traveling. The pigeon flies back and forth at 18 MPH between the 2 friends until the friends meet.
How many miles does the pigeon travel

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(2 years ago)

Ans: 54 miles

Let two friends are A and B, who lives 36 miles apart.
Case-I (Pigeon first flies from B towards A)
Relative speed of Pigeon and A = 18+6 = 24 mph. Time of meeting Pigeon and A=36/24=3/2 hr.
In time 3/2 hrs, distance traveled by A & B=2*6*3/2=18 miles, Remaining distance=36-18=18 miles.
Case-II (Pigeon then flies from A towards B)
Relative speed of Pigeon and B = 18+6 = 24 mph. Time of meeting Pigeon and B=18/24=3/4 hr.
In time 3/4 hrs, distance traveled by A & B=2*6*3/4=9 miles, Remaining distance=18-9=9 miles.
Case-III (Pigeon first flies from B towards A)
Relative speed of Pigeon and A = 18+6 = 24 mph. Time of meeting Pigeon and A=9/24=3/8 hr.
In time 3/8 hrs, distance traveled by A & B=2*6*3/8=9/2 miles, Remaining distance=9 - 9/2=9/2 miles.
Case-IV (Pigeon then flies from A towards B)
Relative speed of Pigeon and B = 18+6 = 24 mph. Time of meeting Pigeon and B=(9/2)/24=3/16 hr.
In time 3/16 hrs, distance traveled by A & B=2*6*3/16=9/4 miles, Remaining distance=(9/2)-(9/4)=9/4 miles.

Thus Pigeon we fly between A and B, for 3/2, 3/4, 3/8, 3/16, ..... hrs (which forms series) until both the friends meets. Therefore total distance traveled by Pigeon=18*(3/2 + 3/4 + 3/8 + 3/16 + ......)=18*3*(~1)=54 miles.

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(2 years ago) "Other"

There are 50 employees in a Max. Mink Co. The salaries of 15 of them were each decreased by 10%, and the salary of the rest were each decreased by 5%. Find the percentage decrease in the total salary of the employees.

Reply Like? Yes (8) | No (2)

(2 years ago)

Let initial salary of each employee be 1.
Total decrease in salary = 50 - [(15*0.9) + (35*0.95)] = 3.25
% Decrease in total salary = (3.25/50)*100 = 6.5%

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(2 years ago)

Let ₹100 is the salary of each
15 persons decrease by 10%=> salary =₹90
35 persons salary decreased by 5%=> salary =₹95
Total salary =15*90+35*95=₹1350+₹3325
=₹4675
Less by₹325=>%of less =(325/5000)100
325/50=13/2=>6.5%

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to (2 years ago) "Other"

Hi mam , How are you

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(2 years ago) "Other"

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(2 years ago) "Other"

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