Question

A man started his job with a certain monthly salary and earned a fixed increment every year. If his salary was Rs. 4500 after 5 years. of service and Rs. 5550 after 12 years of service, what was his starting salary and what his annual increment.

Answer 1

Let his initial monthly salary be Rs x and annual increment be Rs y.

Then, Acc. to problem x + 5y = 4500 ......(i)

x + 12 y = 5550 ....(ii)

Solving these two equations, we get x= Rs. 3750 y = Rs 150.