a family spends rs 200 for buying flour at the rate of rs 40 per kg if the price - Maths - Comparing Quantities

Question

a family spends rs 200 for buying flour at the rate of rs 40 per kg
if the price of flour increased by 10 %,what is the expenditure
increase of the family for purchasing flour?if the family wants to
unchange the total expenditure for flour ,how much percentage they
need to cut down their use?

Brijendra Pal · Accepted Answer

Hi, with 40 rupees per kg he is buying flour for 200 rupeesso quantity bought = 20040= 5 kg now price is increased by 10 % so new price = 40+10% of 40 = 40+ 40×10100= 44 Now quantity needed is still 5 kg so new expenditure  = 5×44 = Rs
 220  So increased expenditure = 220 -200  = Rs
 20  
Now,
<img alt="" src=
"https://s3mn%20mnimgs%20com/img/shared/content_ck_images/ck_5a73510debc3e%20png"
style="width: 667px; height: 130px;">

So here if consumption is reduced to keep expenditure same then
=
10100+10×100= 9111%  reduction in consumption

a family spends rs 200 for buying flour at the rate of rs 40 per kg.if the price of flour increased by 10 %,what is the expenditure increase of the family for purchasing flour?if the family wants to unchange the total expenditure for flour ,how much percentage they need to cut down their use?