Test Index

WAEC Mathematics 2011 Paper

Question : 1

Total: 47

If N112.00 exchanges for D14.95, calculate the value of D1.00 in naira

Solution:

Concept:

Exchange rate conversion: find how much one unit of foreign currency is worth in naira.

Explanation:

Given:

\text{N}112.00 = \text{D}14.95

To find the value of

\text{D}1.00

, divide both sides by

14.95

\text{D}1.00 = \frac{\text{N}112.00}{14.95}

= \text{N}7.49

(correct to two decimal places).

So, one unit of D is equivalent to N7.49.

Answer:

The value of

\text{D}1.00

in naira is

\text{N}7.49

Therefore, the correct option is B.

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