Practicing Success
The monthly salary of a person was ₹50,000. He used to spend on Family expenses (E), Taxes (T), Charity (C), and the rest were his savings. E was 60% of the income, T was 20% of E, and C was 15% of T. When his salary got raised by 40%, he maintained the percentage level of E, but T becomes 30% of E and C becomes 20% of T. The difference between the two savings (in ₹)is : |
128 220 130 250 |
220 |
Monthly salary of a person = ₹50,000 E = 60% of 50,000 = \(\frac{60}{100}\) × 50000 = 30000 T = 20% of E = \(\frac{20}{100}\) × 30000 = 6000 C = 15% of T = \(\frac{15}{100}\) × 6000 = 900 Saving = 50000 - 30000 - 6000 - 900 = 13,100 New salary = 140% of old salary = \(\frac{140}{100}\) × 50000 = 70000 E = 60% of 70,000 = \(\frac{60}{100}\) × 70000 = 42000 T = 30% of E = \(\frac{30}{100}\) × 42000 = 12,600 C = 20% of T = \(\frac{20}{100}\) × 12600 = 2520 New Saving = 70000 - 42000 - 12600 - 2520 = 12880 Required difference = New Saving - Old Saving = 13100 - 12880 = 220
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