Topic: Please help me to solve these questions.

Originally Posted by catchdwind

I also made the same mistake in my 1st calculation to get a wrong ans of 4.

But free your mind & look at it this way using the elementary BODMAS rule:

The last 1 tks care of 0 to account for M (1x0=0)

A is accounted for next b4 S in bodMAS

So it reduces to: 10 - 1 + 5

Which eva way you simplify from, you'll get 14.

10 + (-1 + 5) = 10 + 4 = 14

Or

(10 - 1) + 5 = 9 + 5 = 14

Or

(10 + 5) - 1 = 15 - 1 = 14

CORRECT!!

Ans
Q1 = 21
Q2 = 15264
Q3 = 14