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A car travels with a constant speed of 30 km/hr for 15 min. and then quickly speeds up to 50 km/hr to be maintained for 30 min. Then its average speed in km/hr would be |
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|
(a) |
43.33 km/hr |
(b) |
40 km/hr |
|
(c) |
45 km/hr |
(d) |
50 km/hr |
|
A car travels with a constant speed of 30 km/hr for 15 min. and then quickly speeds up to 50 km/hr to be maintained for 30 min. Then its average speed in km/hr would be |
|||
|
(a) |
43.33 km/hr |
(b) |
40 km/hr |
|
(c) |
45 km/hr |
(d) |
50 km/hr |