A man spends 75% of his income. His income increased by 20% and he inc

1.	A man spends 75% of his income. His income increased by 20% and he increased his expenditureby 15%. His savings will then be increased by
Answer» Let us assume his income is Rs . 100.Now A/Q his expenditure is 75 % i.e. Rs . 75 So his savings = S1 = 100-75 = RS . 25 Later his income increases by 20% → 100 + 100 x 20/100 = Rs. 120and his expenditure increases by 15% → 75 + 75 x 15 /100 = 345/4 = Rs. 86.25 So his savings = S2 = 120 - 86.25 = Rs . 33.75Increment in savings = S2-S1 = 33.75 - 25 = Rs. 8.75 percentage increase = 8.75 / 25 x 100 = 35 %

A man spends 75% of his income. His income increased by 20% and he increased his expenditureby 15%. His savings will then be increased by

Answer»

Let us assume his income is Rs . 100.Now A/Q his expenditure is 75 % i.e. Rs . 75

So his savings = S1 = 100-75 = RS . 25

Later his income increases by 20% → 100 + 100 x 20/100 = Rs. 120and his expenditure increases by 15% → 75 + 75 x 15 /100 = 345/4 = Rs. 86.25

So his savings = S2 = 120 - 86.25 = Rs . 33.75Increment in savings = S2-S1 = 33.75 - 25 = Rs. 8.75

percentage increase = 8.75 / 25 x 100 = 35 %