Question

5. Robert is 168 cm tall and his sister Marie is 5 as tall as him. How tall is Marie?
8
b. 101 cm tall
c. 103 cm tall
d. 105 cm tall
a. 100 cm tall​

Answer 1

GIVEN :

Robert is 168cm tall and his sister Marie is as tall as robert.

b. 101 cm tall

c. 103 cm tall

d. 105 cm tall

a. 100 cm tall​

TO FIND :

How tall is Marie

SOLUTION :

Given that Robert is 168cm tall and his sister Marie is $\frac{5}{8}$  as tall as him.

We can write it as

$168\times \frac{5}{8}$

$=21\times 5$

= 105

Option d. 105 cm tall is correct.

∴ Marie is 105 cm tall