MBA Exam

7. if m and n are two integers divisible by 5, then which of the following need not be necessarily true?1) m^2 + n^2 is divisible by 25 2) m-n is divisible by 5 3) m + n is divisible by 10 4) none of these [CAT 1997]

1) 1
2) 2
3) 3
4) 4

Read Solution (Total 1)

the answer is 3) m+n is not always divisible by 10.ex- m is 15 and n is 20 the sum is 35,nit divisible by 10
12 years agoHelpfull: Yes(0) No(0)

MBA Other Question

If in any decreasing arithmetic progression, sum of all its terms, except for the first term, is equal to -36, the sum of its terms, except for the last term, is zero, and the difference of the tenth and sixth term is equal to -16, then what will be the first term of this series?

1) 16
2) 20
3) -16
4) -20
5) -24
Two different solutions of honey,milk and water are mixed with each other three times in varying proportions. The concentration of honey and milk in the three resulting solutions are found to be (10%, 16%), (12%,12%) and (16%, x%) respectively. what is the value ofplease tell the solution also.

1) 4
2) 7
3) 8
4) 10