## Data Sufficiency questions and answers

Question 1. How many people are there in the plain ?
Statement I : 25% passengers are women and 35% are children.
Statement II : There are 24 men in the plain

From Statement I we can conclude that there are 40% men in the plain but we can’t find the exact number of passengers
From Statement two  : Number of men passengers = 24
By combining both the statements we get, total number of passengers = 24 * 100/40 = ( you don’t need to calculate the answer )
Question 2. What is the difference between monthly income of Ram and Chaaru
Statement I : Ram earns Rs 6000 less than Shaam
Statement II : Chaaru earns Rs 6000 more than Shaam.

In this question we don’t need to in depth. Simply there is difference of Rs 12000
Question 3. Is x divisible by 28 ?
Statement I : x is divisible by 20
Statement II : x is divisible by 84

Using statement I – x is divisible by 4 and 5
Using statement II – x is divisible by 3,4, and 7.
By using both statements we can conclude that x is divisible by 28 ( 4*7), hence answer is C.
Question 4. P,Q,R,S and T are five friends. Their mean age is 18. What is the age of R ?
Statement I : P’s age is 18
Statement II : Q’s age is 2 years less than T and T’s age is 6 years less than S.
Statement III : R’s age is 6 years more than B’s age and 4 years more than T’s age.