25. A train travels from A to B at the rate of 20kmper hour and from B to A at the rate of 30 km/hr. What is the average rate for the whole journey?

एक ट्रेन 20 किमी प्रति घंटे की दर से ए से बी तक और 30 किमी / घंटा की दर से बी से ए तक जाती है। पूरी यात्रा के लिए औसत दर क्या है?ਇਕ ਰੇਲ ਗੱਡੀ ਏ ਤੋਂ 20 ਕਿਲੋ ਮੀ ਪ੍ਰਤੀ ਘੰਟਾ ਅਤੇ ਬੀ ਤੋਂ ਏ 30 ਕਿਲੋ ਮੀ ਪ੍ਰਤੀ ਘੰਟਾ ਦੀ ਦਰ ਤੋਂ ਜਾਂਦੀ ਹੈ ਤਾਂ ਉਸ ਦੀ ਔਸਤ ਦਰ ਕਿੰਨੀ ਹੈ।

(a) 24 km/hr (b) 25 km/hr

answer: a

(7)

5/5 - (1 vote)

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25. A train travels from A to B at the rate of 20kmper hour and from B to A at the rate of 30 km/hr. What is the average rate for the whole journey?

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25. A train travels from A to B at the rate of 20kmper hour and from B to A at the rate of 30 km/hr. What is the average rate for the whole journey?

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Career counsellors in Chandigarh Online Offline

50. A man travelled a total distance of 1800 km by plane, train and bus. He travelled one –third of the whole trip by plane and the distance travelled by train is three-fifth of the distance travelled by bus. Find the distance travelled by bus

48. Amit walks at a uniform speed of 4 km/hr and 4 hr after his start, Brijesh cycles after him at the uniform rate of 20 km/hr. How far from the starting point will Brijesh catch Amit?

47. When a person reduces his speed from 42 km/hr to 36 km/hr he takes 20 min more then his usual time taken. Find the usual time taken by him?

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