To cover a distance of 416 km, a train A...

To cover a distance of 416 km, a train A takes `2 2/3` hours more than train B. If the speed of A is doubled, it would take `1 1/3` hours less than B. What is the speed (in km/h) of train A ?
416 किमी की दूरी तय करने में, ट्रेन A को ट्रेन B से `2 2/3` घंटे अधिक लगते हैं | यदि A की चाल दोगुनी कर दी जाए, तो इसे B से `1 1/3` घंटे कम लगेंगे| ट्रेन A की चाल ( किमी/घंटा में ) कितनी है ?

a)56

b)54

c)52

d)65

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