Question

ans this clearly with reason.

Answer 1

Hi,

m -= n;

above line is short version of m = m - n;

-= operator is used to subtract the value of right variable from left side varibale and then assign the result in left side variable;

remeber that = operator is assignment operator

so we cannot write it like below

5 = 5 - 2;

the correct way is

m = 5 - 2;

so the answer will be 3

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n = m + m / n;

this is very simple just follow BODMAS rule

n = 5 + (5 / 2)

n = 5 + 2.5

n = 7.5 Ans