Question

24. The price of sugar increases by 20%.
By what per cent must a housewife
reduce the consumption of sugar, so
that the expenditure on sugar is the
same as before?
(b) 20%
(C) 80% (d) 83-%
(a) 16%​

Answer 1

Answer:

a) 16%

Step-by-step explanation:

Let, the price of 100 gm sugar is ₹100.

As, price hiked by 20% now the price of 100 gm sugar is ₹120.

To keep the expenditure same she should buy sugar worth ₹100.

Now, after price hike, we can get (100*100/120) gm for ₹100.

So, consumption of sugar is reduced by

100 - (100*100/120)

= 100 - (250/3)

= 50/3 = 16.67 a