Question

A man starts his job with a certain salary and earns a fixed increment every year. If his salary was ₹ 15000 after 4 years of service and ₹ 18000 after 10 years of service, then find his starting salary and annual increment respectively.

• A. ₹ 11000, ₹ 700
• B. ₹ 13000, ₹ 500
• C. ₹ 13000, ₹ 700
• D. ₹ 11000, ₹ 500

Answer 1

The correct option is B

₹ 13000, ₹ 500

Let starting salary be ₹ x
and annual increment be ₹ y
According to the first condition:
x + 4y = 15000 ......(i)
According to the second condition:
x + 10y = 18000 ......(ii)
Subtracting (i) from (ii), we get
6y = 3000
y = 500
Substituiting y = 500 in equation (i), we get
x + (4$\times$500) = 15000
x = 15000 - 2000
x = 13000
Hence starting salary is ₹ 13000 and annual increment is ₹ 500.