Question

Thabo is 10 years old. His twin sisters are 4 years old. R109.80 must be divided amongstthem in the same ratio as their ages. How much will each sister receive?

Answer 1

ANSWER :

R24.40 each

EXPLANATION :

Thabo has twin sisters, so they are three.

Thabo is 10 years old

Each sister is 4 years old.

Their age ratio is 10 : 4 : 4 and R109.80 will be divided amongst them in that ratio.

Step 1 :

Add the ratios, 10 + 4 + 4 = 18

Step 2 :

Divide R109.80 by 18

$\frac{109.80}{18}=6.1$

Step 3 :

Multiply the result to their ratio :

10(6.1) : 4(6.1) : 4(6.1)

61 : 24.40 : 24.40

From here, we can say that his sister will receive R24.40 each