Question

A boy gets #2.00 per week as pocket money. His sister gets #1.60 per week. Find the ratio of the boy's allowance to his sister. If his sister gets #20 more per week, what will be the new ratio?

A. 5:4
B. 4:5
C. 2:1
D. 3:2

Answer 1

The calculated value of the new ratio is (a) 5 : 4

How to determine the new ratio

From the question, we have the following parameters that can be used in our computation:

• The boy's allowance is #2.00 per week
• His sister's allowance is #1.60 per week.

So, the ratio of the boy's allowance to his sister's allowance is

Ratio = 2 : 1.6

Ratio = 1.25 : 1

If his sister gets 20k more per week, then

Ratio = 2 : 1.6 + 0.2

Ratio = 2 : 1.8

So, we have

Ratio = 5 : 4

Hence, the new ratio is 5 : 4