Question

3. Hector can run from the train station to his parents' house in eight minutes. His
younger brother Darius can run the same distance eight times in one hour. Who
is faster?​

Answer 1

Answer:

Let the distance is = X

total distance covered by hector in 8min = X

distance cover by hector in 1 hour = X/8 × 60 = 7.5x units

distance covered by his elder brother in one hour = 8x units

therefore,his elder brother is faster than hector

Answer 2

Answer:

Darius

Explanation:

Distance = Speed×Time

Let the distance be x.

Speed of hector = x metre per 8 minutes

Speed of his brother, Darius = 8x metre per hour

Comparing these we get

8x metre per 64 minutes = 8x metre per 60 minutes

Hence, Darius runs faster.