Question on: WAEC Mathematics - 2005
A train moving at a uniform speed covers 36km in 21 minutes. How long does it take to cover 60km?
A
35 mins
B
40 mins
C
45 mins
D
90 mins
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Correct Option: A
Since 36km in 21 minutes
1km in \(\frac{21}{36}\)minutes
60km in \(\left(\frac{21}{36}\times 60\right)\)minutes = \(\frac{70}{2}\)min
= 35 mins
1km in \(\frac{21}{36}\)minutes
60km in \(\left(\frac{21}{36}\times 60\right)\)minutes = \(\frac{70}{2}\)min
= 35 mins
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