Question

Rahul spent 10% of his weekly allowance on Monday. Wednesday he spent 1/3 of the reminder .What percent of his allowance is left at the end of Wednesday?

Answer 1

`p = 60\,\%`

Explanation:

After reading the statement, the reminder is 9/10 of the weekly allowance on Wednesday. The proportion of allowance left at the end of Wednesday is:

`(2)/(3)* (9)/(10)`

`(18)/(30) = (9)/(15) = (3)/(5)`

The percentage is:

`p = (3)/(5)* 100\,\%`

`p = 60\,\%`

Answer 2

60% of his total allowance.

Explanation:

If Rahul spent 10% on Monday, the reminder after Monday will 100% (the total) - 10% = 90%

Then, on Wednesday, he spent 1/3 of the reminder, that is, 1/3 of 90%, so the total he spent on Wednesday is (1/3) * 90/100 = 30/100 = 30%

If he spent 30%, now he has 90% - 30% = 60% of his total allowance.