Question
A person saves 30% of his monthly income. If his monthly
is increased by 45% and he still saves the same amount as before then find percentage increase (approximate) in his monthly expenditure.Solution
Let monthly of person is Rs. 100x Monthly savings = 0.30 times; 100x = Rs. 30x Monthly expenditure = 100x ndash; 30x = Rs. 70x His increased monthly income = 1.45 times; 100x = Rs. 145x His monthly expenditure now = 145x ndash; 30x = 115x Percentage increase in expenditure = [(115x ndash; 70x)/70x] times; 100 ~ 64.3%
More Percentage Questions
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
28.95% of 924.78 + 1955% of 38.99 = ?
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
9.99% of 19.86% of 30.23% of (11999.84 × 9.68) = ?
29.98% of 549.99 = ? - 254.97 + 79.98% of 74.99Â
1131.98 + ? – 1125.04 = 1364.93 – 1168.01
98.999 x 99.001 + 640.856=?
What approximate value should come in the place of (?) in the following questions?
?3 -18.32 * 40.24 ÷ √399 = 200.79 + 105.78
...960.02 of 238.89 ÷ 144.01 of 79.97 = ?
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