1
Question
The chapter "Review 3" has question no. 1 on page no. 37. Explain/Solve.
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Solution
Speed = Distance travelled ÷ Time taken
Distance travelled = Speed × Time taken
Time taken = Distance travelled ÷ Speed
Distance Time Speed
a) 150 cm
3s
= 50 cm/s
b) 75 × 5 = 375 km
5 h
75 km/h
(c) 120 m
= 6 min
20 m/min
(d) 16 × 8 = 128 m
8 s
16 m/s
Distance travelled = Speed × Time taken
Time taken = Distance travelled ÷ Speed
| Distance | Time | Speed |
a) 150 cm | 3s | = 50 cm/s |
b) 75 × 5 = 375 km | 5 h | 75 km/h |
(c) 120 m | = 6 min | 20 m/min |
(d) 16 × 8 = 128 m | 8 s | 16 m/s |
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