A person could save 10% of his income. But 2 years hence, when his income increased by 20%, he could save the same amount only as before. By how much % has his expenditure increased? |
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a) |
22% |
b) |
23% |
c) |
24% |
d) |
25% |
A person could save 10% of his income. But 2 years hence, when his income increased by 20%, he could save the same amount only as before. By how much % has his expenditure increased? |
|||||||
a) |
22% |
b) |
23% |
c) |
24% |
d) |
25% |
Let the original income be
Savings = 10% of
∴ Expenditure =
Now, 2 years hence salary (increased by 20%)=
∴ Savings (after increase) is same as before =
Now, new expenditure=
∴ % increase in expenditure =
=