Mohan's salary was first increased by 20% and then decreased by 20%. If his present salary is rs. 7200, then what was his original salary?
Answers
Answered by
0
Answer:
Mohan's original salary was Rs.7,500
Step-by-step explanation:
Let Mohan's original salary be "x"
ATQ, Mohan's increased salary = x + 20% of x
= x + 0.2x
= 1.2x
This salary was reduced by 20%. Hence,
Reduced salary = 1.2x - 20% of (1.2x)
= 1.2x - (0.2)*(1.2x)
= 1.2x (1 - 0.2)
= 1.2x (0.8)
= 0.96x
This, according to the question, is Rs.7,200
=> 0.96x = 7200
=> x = 7200/0.96
=> x = 7500
Mohan's original salary = Rs.7,500
Verification
Original salary = Rs.7500
20% of Rs.7500 = Rs.1500
Revised salary after 20% increase = Rs.7500 + Rs.1500 = Rs.9000
20% of Rs.9000 = Rs.1800
Revised salary after 20%decrease = Rs.9000 - Rs.1800 = Rs.7,200
(Verified)
Answered by
1
Answer:
7500 is the answer, and I am pretty sure about it
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