Two cars A and B 155 km apart start moving towards each other at different speeds. After covering 36km car a takes a left travels 20km then turns right travels 40 km, then takes a right and travels 59 km and reaches point X. B travels 61 km straight then turns left and travels 19 km and reaches point Y. A and B reaches points X and Y at the same time respectively.

Q. If car A was travelling at a speed of 31kmph average speed what was the speed of car B?

16kmph

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20kmph

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24kmph

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18kmph

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None of these

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Solution

The correct option is A 16kmph
From the given information
The distance travelled by A = 36+20+40+59 =155km
The distance travelled by B = 61+91
= 80km
Since its is given that both cars reached points X and Y at the same time
Ta = Tb
$\frac{Distance traveled by a}{speed of a} = \frac{Distance traveled by b}{speed of b}$
$Speed of b = \frac{31}{155} \times 80$
= 16kmph

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Q. दो कारें A और B जो एक दूसरे से 158 किमी की दूरी पर हैं,अलग-अलग गति से एक-दूसरे की ओर बढ़ना शुरू करती हैं। 36 किमी की दूरी तय करने के बाद, कार A बाईं ओर मुड़ती है और 20 किमी की यात्रा करती है, फिर दाएं मुड़कर 40 किमी की यात्रा करती है, फिर दाएं मुड़ती है और 59 किमी की यात्रा करती है और बिंदु X पर पहुंचती है। कार B 61 किमी की यात्रा सीधे करती है, फिर बाएं मुड़ती है और 19 किमी की यात्रा करती है और बिंदु Y पर पहुंचती है। A और B क्रमशः बिंदु X और Y पर एक ही समय पर पहुंचती हैं ।

A और B के अंतिम गंतव्यों के बीच की दूरी कितनी है?

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