Q. 54.3( 62 Votes )

# Sanjay gets fixed

Let the original salary be 'x' and yearly increment be 'y'

After 4 years, his salary was Rs. 4500

x + 4y = 4500

x = 4500 - 4y eq.[1]

After 10 years, his salary becomes 5400

x + 10y = 5400

4500 - 4y + 10y = 5400

6y = 900

y = 150

Putting this in eq.[1],

x = 4500 - 4(150)

x = 4500 - 600 = 3900

Hence, his original salary was Rs. 3900 and increment per year was 150 Rs.

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