Question

A man spends 80% of his income. His income increased by 25% and his expenditure increased by 10%. By how much did his savings increase?

Answer 1

plz plz answer i am in a true need of it!!!!

Answer 2

To make it easier to see, let's say his income is $1000
so he spends $800 and saves $200

his new income = 1.25(1000) = 1250
his new spending = 1.1(800) = 880
new savings = 1250-880 = 370
increase in savings = 370-200 = 170

increase in savings = 170/200 = .85 or 85%

Answer 3

now he makes 100, spends 80, and saves 20
later, he makes 125 and spends 88, saving 37

so, his savings went up 17/20 = 85%

Answer 4

thank you reiny and steve but in both case i couldn't understand a similar step:
1)In reiny's answer :his new spending = 1.1(800) = 880 from where 1.1 came from?

2)in steve's answer :spends 88 ,from where 88 came from ?

Answer 5

80% increased by 10% is .80*1.1 = .88