On a map, 1cm represent 5km. Find the area on the map that represents 100km...
MATHEMATICS
WAEC 2016
On a map, 1cm represent 5km. Find the area on the map that represents 100km2.
- A. 2cm2
- B. 4cm2
- C. 8cm2
- D. 8cm2
Correct Answer: B. 4cm2
Explanation
On a map, 1cm represents 5km. Then it follows that 1cm2 represents 25km2. Acm2 represents 100km2. By apparent cross-multiplication, 1cm2 x 100km2 = Acm2x 25km2
therefore A = \(\frac{100}{25}\) = 4cm2
Post an Explanation Or Report an Error
If you see any wrong question or answer, please leave a comment below and we'll take a look. If you doubt why the selected answer is correct or need additional more details? Please drop a comment or Contact us directly. Your email address will not be published. Required fields are marked *