WAEC - Mathematics (2012 - No. 6)
Mr. Manu travelled from Accra to Pamfokromb a distance of 720km in 8 hours. What will be his speed in m/s?
25m/s
150m/s
250m/s
500m/s
คำอธิบาย
\(\frac{720 \times 1000}{8 \times 60 \times 60}\) = \(\frac{20 \times 10}{8}\)
= \(\frac{200}{8}\)
= 25 m/s
= \(\frac{200}{8}\)
= 25 m/s