ER. RAKESH Profile Page

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lakhan jain 10 Months ago

Rakesh, can you suggest some good books to prepare for elitmus....I mean from where do they refer max. no of questions while setting the paper?

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Shaheen harun shaikh 2 years ago

Hi Rakesh , will you please guide me , would be vry helpful, thanks in advance u can contact me @shaikhshaheen85@gmail.com

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subhangi 3 years ago

Hi Rakesh, can u plz send me IBM materials including Business communication ,coding and apti questions.
mail- subhangi430@gmail.com

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Ram Kishor Bajpai 3 years ago

In a Chimp Zoo there are 1 billion monkeys. The probability that a monkey in the zoo has seen a Banyan tree is 0.6.
The probabilty that a monkey has seen a mango tree is 0.65. What is the minimum percentage of monkeys in the zoo who have seen both the trees?
(A)25% (B)39% (C)40% (D)60%
will you please help me?

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N.Vennela Rani 3 years ago

sir u r too intelligent how can u solve questions with in less time

Reply Like? Yes (3) | No

deepu dk 3 years ago

27 IS THE PERFECT ANSWER

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Akshay 4 years ago

http://www.m4maths.com/157388-if-systems-of-equations-3x-a-1-9y-2-a-30-and-2x-2-a-3y-2a-1-10-has-infinite-solutions-what.html

Reply Like? Yes (1) | No

PILLI MEGHASAI 4 years ago

Please send solution for 1st August problem

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N.Vennela Rani 3 years ago

16, 28, 48, 92), (63, 15, 29, 107), (46, 28, 36, .....)

16 + 28 + 48 = 92 (Sum of first three number = fourth number)
63 + 15 + 29 = 107
46 + 28 + 36 = (110)
sum of first 3 numbers is equal to fourth number

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PILLI MEGHASAI 4 years ago

tell me procedure

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Jigdrel Dorji 4 years ago

Hi bro could you explain in simplest way to solve this question.. Thanks
Q. Suppose two boys can read three books in four days. At the same rate, how long will it take 8 boys to read a dozen books? Explain with steps.

Reply Like? Yes (3) | No

vivek pal 4 years ago

Ans-> 1/4 day ..................................

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Shantanu Sahoo 4 years ago

can you please solve this problem?

Reply Like? Yes (2) | No

Shantanu Sahoo 4 years ago

One man and six women working together can do a job in 10 days. The same job is done by two men in p days and by eight women in (p+5) days. By what percentage is the efficiency of man greater than that of woman ?

Reply Like? Yes (1) | No

MOJUMDER 4 years ago

Suppose 1 man in 1 day can do x part of the job and 1 woman can do y part of the job in 1 day.
Then, x + 6*y = 1/10...(1)
Again, 2*x = 1/p and 8*y = 1/(p+5).
Therefore, x = 1/(2*p) and y = 1/{8*(p+5)}.
Now these values of x and y in equation (1), solve for p and then you will get p=10. So, x = 1/20 and y = 1/120.
Hence, the efficiency of man is greater than that of woman by (1/20 - 1/120)/(1/120) * 100 = 500%.

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Gokul Krishnan 4 years ago

Brother could you please find the answer of this question find the sum of first 40 terms of series 1^2-2^2+3^2-4^2+...

Reply Like? Yes (1) | No

RAKESH 4 years ago

(1^2-2^2)+(3^2-4^2)+(5^2-6^2)... +(39^2-40^2)
a^2-b^2=(a+b)(a-b)
= - [1+2+3+4+5+6+---------+ 39+40]
= -20*41
= -820

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Hemant Kumar 4 years ago

hii brother,hw r u?

Reply Like? Yes (3) | No

G.krishnaveni 4 years ago

hii brother,hw r u?

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RAKESH 4 years ago

any suggestion/query mail at, rakesh2010.234@rediff.com

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udaya 5 years ago

Rakesh can u give me ur mail id>
this is my mail id udayareddy443@gmail.com

Reply Like? Yes | No (1)

G.krishnaveni 5 years ago

hii brother..wt r u studying

Reply Like? Yes (3) | No

G.krishnaveni 4 years ago

hii brother,hw r u?

Like? Yes | No (1)

Hemant Kumar 4 years ago

hii brother,hw r u?

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G.krishnaveni 4 years ago

hii,hello,hw r u sir?

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santosh 5 years ago

2.In a party abhishek and aishwarya shook hands.If abhishek shook hands with n as many women as men and aishwarya shook hands with m as many women as men
Q3.If n=3 and m=4 then no of people at the party?
Q4.If n=8 and m=9 then no of women at the party?

Reply Like? Yes | No (1)

Hemant Kumar 4 years ago

hii brother,hw r u?

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santosh 5 years ago

A monkey is 60 m away from banana tree to left side and 40 m away from mango tree to right side.when tail of monkey pulls from left side it moves 20 m to left and if tell pulls from right side then monkey moves 20 m towards right.This process continues till monkey will reach any of tree.
1. Total number of time when tail pulls=21.
2. Right side pulls 3 times more than left side.

Reply Like? Yes | No

santosh 5 years ago

for rs 600 mr karan can buy a max of 24 cups of tea and for rs 1500 he can buy a maximum of 15 cups of coffee.he has 2200 in his pocket and purchase 8 cups of tea what is the max no of cups of coffee he can purchase with the remaning money

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santosh 5 years ago

How many liters of 20% alcohol should be mixed with 60 % alcohol to get 32% alcohol
(1) We get 70 liters of 32% alcohol
(2) We used 21 lit of 60% alcohol, to prepare 32%
A if the question can be answered by using one of the statements alone, but cannot be answered by using the other statements alone
B if the question can be answered by using either statement alone
C if the question can be answered by using both statements together,but cannot be answered by using either statement alone
D if the question cannot be answered even by using both the statements together

Reply Like? Yes (5) | No

Ashutosh Athawale 5 years ago

D if the question cannot be answered even by using both the statements together

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santosh 5 years ago

Is x^2+y^2 divisible by 5?

(1) When x-y is divided by 5, the remainder is 1
(2) When x+y is divided by 5, the remainder is 3

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ER. RAKESH
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Bihar

Rakesh (M)

Total Points 9517
Join 7 years ago

M4 Score

100

Score from best 50 Questions

Attempted 50
Date Points

12 Oct 15 20
02 Nov 15 20
04 Nov 15 20
16 Nov 15 20
17 Nov 15 20
23 Nov 15 20
27 Nov 15 20
07 Dec 15 20
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25 Jan 16 20
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29 Feb 16 20
01 Mar 16 20
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Total 1000
M4 Score1000 / 10 = 100

Bengal College of Engineering and Technology, Durgapur

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