Question

Mrs Sanchita and rupees 11000 per month. She spends 85% of the amount and saves the rest. On 1st January her salary was increased by 20%. She now increased her expenses to 87% of her salary. How much more or less does she has now?

Answer 1

Mrs Sanchita earned Rs 11000 per month.
She spent 85% of the amount that is 85% of 11000 = (85/100)(11000) = Rs 9350.
So she saved Rs 11000-9350 = Rs1650.

Now on January 1st , her salary increased by 20%.
New salary = 11000+20%of 11000= 11000+(20/100)(11000) = 11000+2200 = Rs 13200
She spends 87% of new salary
It means she spends (87/100)(13200) = Rs 11484.
So she saves 13200-11484 = Rs 1716

So as compared to old salary (when she saved Rs 1650) she now saves Rs 1716
So she saves Rs 1716-1650 = Rs 66 more.