Question

The diameter of planet A is twice the diameter of planet B. If the diameter of planet A is 9236 miles, then the diameter of planet B is miles.

• A. 4618
• B. 4718
• C. 4318
• D. 4368

Answer 1

The correct option is A 4618

Diameter of planet A = 9236 miles
Diameter of planet B = Diameter of planet A ÷ 2 i.e. 9236 ÷ 2
$$\begin{array}{c}4618\\ 29236\\ -\underset{–}{8}2\\ 12\\ -\underset{–}{12}\\ 03\\ -\underset{–}{02}\\ 16\\ -\underset{–}{16}\\ 00\end{array}$$
Hence, the diameter of planet B is 4618 miles.