A person starts his job with a certain monthly salary and earns a find increment every year. If his salary was Rs. 4500 after 4 years of service and Rs. 5400 after. 10 years of service, find his initial salary and the annual increment.
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LET HIS INITIAL SALARY BE-x
let annual increment be- y
by the problem,
x+4y=4500 -(1)
x+10y=5400 -(2)
subtracting (2) from (1) , -6y=-900
y=150
putting value of y in (1)
x+600=4500
x=3900
so , initial salary =3900
annual increment=150
let annual increment be- y
by the problem,
x+4y=4500 -(1)
x+10y=5400 -(2)
subtracting (2) from (1) , -6y=-900
y=150
putting value of y in (1)
x+600=4500
x=3900
so , initial salary =3900
annual increment=150
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