Question

the price of salt is increase by 40%.as a result,a family on salt will be decreases its consumption by 50%.the expenditure of the family on salt will be decreased by​

Answer 1

Answer:

30%

Step-by-step explanation:

Let us consider before the price

increase price = 100 rs per kg

and consumption = 10 kg

So,

expenditure = 10 × 100 = 1000

now,

According to question,

price increase 40% and consumption

decreases 50%

so, new price 140

and consumption is 5 kg

new expenditure = 140 × 5 = 700

So,

savings is 1000 - 700 = 300

now

the percentage decrease on

expenditure is

(300/1000)×100 = 30000/1000 = 30%.