MEDIUM
7th ICSE
IMPORTANT
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Ajay walked at an average speed of 8 km/hr for 45 minutes and then ran at an average speed of 12 km/hr for 40 minutes. If his average speed for the whole journey was x1517 km/hr, then find the value of x.

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Important Questions on Speed, Time and Distance

MEDIUM
7th ICSE
IMPORTANT
New Mathematics Today Class 7>Chapter 10 - Speed, Time and Distance>Exercise>Q 15
Sujeet covers a distance in 40 minutes if he drives at a speed of 60 km/h on an average. Find the speed at which he must drive to reduce the time of journey by 25%?
MEDIUM
7th ICSE
IMPORTANT
New Mathematics Today Class 7>Chapter 10 - Speed, Time and Distance>Exercise>Q 16
A and B are two stations 560 km apart. A train starts from A at 7 a.m. and travels towards B at 80 km/h. Another train starts from B at 9 a.m. and travels towards A at 120 km/h. When will they meet each other?
EASY
7th ICSE
IMPORTANT
New Mathematics Today Class 7>Chapter 10 - Speed, Time and Distance>Exercise>Q 1
An express train 240 metres long is running with a speed of 108 km/h. If it passes an electric pole in k sec, then find the value of k.
EASY
7th ICSE
IMPORTANT
New Mathematics Today Class 7>Chapter 10 - Speed, Time and Distance>Exercise>Q 2
A train with a speed of 60 km/h, crosses a pole in 30 seconds. If the length of the train is k m, then find the value of k.
EASY
7th ICSE
IMPORTANT
New Mathematics Today Class 7>Chapter 10 - Speed, Time and Distance>Exercise>Q 3
A train 50 metres long passes a platform 100 m long in 10 seconds. If the speed of the train is a km/h, then find the value of a.
EASY
7th ICSE
IMPORTANT
New Mathematics Today Class 7>Chapter 10 - Speed, Time and Distance>Exercise>Q 4
A train 270 metres long is running at a speed of 36 km/h. It will take k sec to cross a bridge 180 metres long. Find the value of k.
EASY
7th ICSE
IMPORTANT
New Mathematics Today Class 7>Chapter 10 - Speed, Time and Distance>Exercise>Q 5
A passenger train 125 metres long takes half a minute in crossing a tunnel 355 metres long. If the speed of the train is k m/s, then find the value of k.
MEDIUM
7th ICSE
IMPORTANT
New Mathematics Today Class 7>Chapter 10 - Speed, Time and Distance>Exercise>Q 6
A train 200 metres long running at 36 km/h takes 55 seconds to pass a bridge. If the length of the bridge is k m, then find the value of k.