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S K aahok 2 years ago

Free walkin drive for any graduates in erode for hospitality management.Call 97915 02467 .forward to your groups in college.will be usefull for someone

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swapnila 2 years ago

Find the Odd man out
2,3,4,15,64,285,1704
Options-
A)15
B)64
C)285
D)4

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S K aahok 2 years ago

Free walkin drive for any graduates in erode for hospitality management.Call 97915 02467 .forward to your groups in college.will be usefull for someone

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Kavya Maalika 2 years ago

answer-B I think

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karthiga 4 years ago

George is two-third as efficient as Smith and Smith is three-fourth as efficient as John. In one day, what will be the fraction of the work done by George alone, compared to all of them working together?
a. 2/3 b. 2/9 c. 4/9 d. 1/3

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aman 4 years ago

Ans is d ) 1/3
Let efficiency of john be x then smith efficiency will be 3x/4and so george will be x/2
Total efficiency = 3x/2
George/total = 1/3
Ans 1/3

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abhi 4 years ago

answer id b). 2/9

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Kavya Maalika 2 years ago

It's 2/9
G=1/2
S=3/4
J=1
part of G work is :
G=(1/2)/(1/2+3/4+1) =(1/2)/(9/4) = 2/9

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karthiga 4 years ago

A rectangle of height 100 squares and width 200 squares is drawn on a graph paper. It is colored square by square from top left corner and moving across in a spiral turning right whenever a side of the rectangle or a colored square is reached. Which square is colored last (give its row and column numbers – the bottom right square is on row 100 and column 200)
a. 51, 150 b. 51, 50 c. 50, 150 d. 50, 50

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karthiga 4 years ago

From a box containing 3 white chips, 7 blue chips and 15 green chips, 2 chips are drawn at random. What is the probability that one is of the chips is blue and the other is white?
a. 7/625 b. 7/50 c. 7/100 d. 21/625

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PAWAN KUMAR 4 years ago

no of ways to select a whiteball out of 3 whiteballs = 3
no of ways to select a blueball out of 7 blueballs = 7
no of ways to select 2 balls out of (15+7+3) i.e, 25 balls = 25c2 = 25*24/2 = 300

therefore, total no of ways = 3*7/300 = 7/100 Ans.

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karthiga 4 years ago

Three cars, A, B and C are participating in a race. A is twice as likely as B to win and B is thrice as likely as C to win. What is the probability that B will win, if only one of them can win the race?
a. 1/2 b. 2/5 c. 3/10 d. 1/10

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PAWAN KUMAR 4 years ago

let the chances of winning C be x.
then, chances of winning B = 3x
chances of winning A = 2*3x = 6x
probability of winning of B = 3x/(6x+3x+x) = 3/10 Ans.

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karthiga 4 years ago

How many prime numbers are there which are less than 100 and greater than 3 such that they are simultaneously of the following forms. 4x + 1 5y – 1
a. 11 b. 12 c. 7 d. None of the above

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karthiga 4 years ago

For a real number x, int(x) denotes the integral part of x, that is int(x) id the largest integer less than or equal to x. Thus int (1.2) = 1 and int (-2.4) = -3. The value of int(1/2)+int(1/2+1/100)+int(1/2+2/100)……. Int(1/2+99/100) is
a. 50 b. 49 c. 51 d. 48

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karthiga 4 years ago

Raj invested in Indigo, HUL and SBI shares at Rs.300, Rs.200 and Rs.5 per share respectively and purchased a total of 100 shares for Rs.10000. the number of Indigo and HUL shares he brought are
a. 15. 25 b. 23, 17 c. 17, 23 d. 17, 60

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karthiga 4 years ago

10 years ago, the average age of 10 people was 33 years. After 3 years, a person of age 40 died. After another 3 years, another person of age 40 died. After another 3 years, another person of age 30 dies. Find the present average age.
a. 43 b. 44 c. 35 d. 40

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aman 4 years ago

Option b is the ans
After 9yr his avg will be 43 so the present avg age that is 10yr will be 44

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karthiga 4 years ago

Each of A, B and C need a certain unique time to do certain work. C needs 1 hour less than A to complete the work. Working together they require 30 minutes to complete 50% of the work. The work also gets completed if A and B start working together and A leaves after 1 hour and B works further 3 hours. How much work does C do per hour?
a. 16.66% b. 66.66% c. 50% d. 33.33%

For any two numbers, we define an operation $ yielding another number X $ Y such that following condition holds: X $ X = 0
Also for all X, X $ (Y $ Z) = X $ Y + Z Find the value of 2012 $ 0 + 2012 $ 1912
a. 2112 b. 100 c. 5936 d. Cannot be determined

bag contains six sticks of the following lengths 1 cm, 3 cm, 5 cm, 7 cm, 11 cm and 13 cm. Three sticks are drawn at ransom from the bag. What is the probability that we can form a triangle with those sticks?
a. 11/20 b. 1 c. 1/4 d. 2/5

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karthiga 4 years ago

A sequence X1, X2 and X3 is said to be in harmonic progression if the reciprocals 1/x1, 1/x2 and 1/x3 are in arithmetic progression. The 5th term and the 7th term for an harmonic progression are 30 and 50 respectively. What is the difference between the 6th and 4th term?
a. 16 b. 14.5 c. 13.4 d. 12.5

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karthiga 4 years ago

Find 13x + 13y
8 1 7 8
x 6 7 8
9 2 3 1 6
4 7 5 6
7 9 y 1 2
6 3 4 9
4 9 2 1 6
6 5 4
7 8 5 9
a. 117 b. 169 c. 91 d. 130
(it is in 9*9 table)

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sahitya 4 years ago

117 is answ. bcoz x=3 and y=6....

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karthiga 4 years ago

The letter of the alphabet are numbers from 1 to 26 consecutively with 1 assigned to A and 26 assigned to Z. By 27th letter we mean a, 28th we mean B etc. In general 26m+n where m, n are positive integers is same as the letter numbered n.
Let p = 6 The storage county military General sends his secret messages according to the following codification scheme. In codifying a sentence, the first time a letter occurs it is replaced by the Pth letter from it, second time it occurs it is replaced by p^3rd letter from it, third time it occurs, it is replaced by p^3rd letter from it etc.
What is the code word for ABBATIAL?
a. GHMNZOOR b. GHKJZOHR c. GHHGZOGR d. GHLKZOIR

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karthiga 4 years ago

For which of the following n is the number 274 + 22058 +22n a perfect square?
a. 2010 b. 2011 c. 2012 d. 2100

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karthiga 4 years ago

There is a set of 9 numbers that relate to each other in a certain way. Find the way the first set of boxes works. The numbers in the second set work in exactly the same way. Find the number that must
a. 16 b. 9 c. 12 d. -21

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karthiga 4 years ago

what is the solution?
George and mark work for a company. George can finish a certain job in 30 days. Mark can finish the same job inn 45 days. A project was taken by the company and George was made superior to Mark. This move from the company was not liked by Mark. So Mark did not work for 15 days. Find the total number of days the entire work was completed if Mark works at his normal speed after 15 days from the date of commencement?
a. 15 b. 20 c. 35 d. 24

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karthiga 4 years ago

what is the solution for this question??
10 people are there, they are shaking hands together, how many hand shakes are possible, if they are in no pair of cyclic sequence
a. 45 b. 9 c. 12 d. 10

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Gitanjali K 4 years ago

1st person shakes hand with other 9 =9 handshakes
.
.
so finally 9th person=1 hanshake and 10th person=0 handshake
so total=9+8+7+6+5+4+3+2+1=45 handshakes

so option

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karthiga 4 years ago

Reply Like? Yes (54) | No (3)

malini devi 4 years ago

what is the answer?
From a square of side 2 cm, equal triangles are cut from its corners to form a regular octagon. We will get an octagon. What is the area of that octagon?
a. a(sqrt2)+8 b. 8(sqrt2)-8 c. 2(sqrt2)+8 d. 8(sqrt2)+4

Read more at http://www.m4maths.com/post-12060-what-is-the-answer-From-a-square-of-side-2-cm-equal-triangles-are-cut-from-its-corners-to-form.html#o1b8x36UWllRevix.99

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saravanan 3 years ago

Let x= side of the regular octagon. By symmetry, each figure cut from the corners must be an isosceles right(45-45-90) triangle,
and all four of them must be congruent. Then the leg of each isosceles triangle must have measure x/sqrt(2)
Then we must have x/sqrt(2)+x+x/sqrt(2)=2 or simplification,
x=2/(1+sqrt(2)) this is one side of octagon.
Area of octagon = 2(1+sqrt(2)) a^2, where a is side of octagon,
area of octagon = 2(1+1.414)(2/(1+sqrt(2)))^2 =3.31 cm^2

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karthiga 4 years ago

what is the solution for this question?
In this question A^B means A raised to the power B. If f(x)=ax^4=bx^2+x=5
F(-3)=2
Then f(3)=?
a. 3 b. -2 c. 8 d. 1

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ER. Karthiga
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Tamil Nadu

Karthiga (F)

Total Points 478
Join 4 years ago

M4 Score

Score from best 50 Questions

Attempted 33
Date Points

16 Dec 14 15
25 Feb 15 15
26 Feb 15 15
03 Mar 15 15
24 Mar 15 15
24 Jun 15 15
07 Jul 15 15
16 Jul 15 15
17 Jul 15 15
10 Aug 15 15
09 Oct 15 15
12 Oct 15 15
13 Oct 15 15
14 Oct 15 15
15 Oct 15 -1
26 Oct 15 15
28 Oct 15 15
02 Nov 15 15
08 Jan 16 15
04 Feb 16 15
18 Feb 16 15
25 Feb 16 15
17 Mar 16 15
18 Mar 16 15
22 Mar 16 15
23 Mar 16 17
24 Mar 16 17
19 Apr 16 15
20 Apr 16 15
22 Apr 16 16
09 Nov 16 15
13 Feb 17 14
14 Feb 17 15

Total 483
M4 Score483 / 10 = 48

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Tamil Nadu

Karthiga (F)

Total Points 478
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