MBA Exam

Salman Khan wants to express some numbers as a difference of two perfect squares in only one way. How many numbers below 100 can he express according to his silly wish ?Approach please

1) 25
2) 35
3) 26
4) 36
5) 34

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MBA Other Question
If the sum of all integers between 3^n and 3^(n+3)(both exclusive) is divisible by 70 where n is a positive integer, which of the following is true about n?

1) n is divisible by 4
2) n is multiple of 6
3) n is divisible by 7
4) n is divisible by 5
 A shopkeeper has 2721 apples, 3081 bananas and 3501 peaches. He makes
baskets of these fruits such that the number of fruits of each type in a
basket is either ‘x’ or 0. In the end the shopkeeper is left with p
(< x) fruits of each type. Find the maximum possible value of x

1) 10
2) 60
3) 20
4) 3