MBA Exam

The present age of the eldest brother is 5 times the sum of the ages of his 5 younger brothers. Twelve years hence, the sum of the ages of the younger brothers will be twice the age of the eldest brother. Find the present age of the eldest brother.

1) 20
2) 50
3) 75
4) None of these

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MBA Other Question

Elegant and Short !

1) 1
2) 2
3) 3
4) 4
How many natural numbers less than 1000 can be expressed as the difference of squares of whole numbers in at least one way?Plz explain

1) 500
2) 749
3) 100
4) 400