Today's Puzzle no.13

Sunday, January 02, 2011

Question:

A worker earns a 5% raise. A year later, the worker receives a 2.5% cut in pay, &

now his salary is Rs. 22702.68

What was his salary to begin with?

Answer:

Rs.22176

Assume his salary was Rs. X

He earns 5% raise. So his salary is (105*X)/100

A year later he receives 2.5% cut. So his salary is ((105*X)/100)*(97.5/100)

which is Rs. 22702.68

Hence, solving equation ((105*X)/100)*(97.5/100) = 22702.68

X = 22176