two persons C and D started travelling from A and B which are 300km apart, towards B and A
respectively at 1.00pm.C travels at a constant speed of 30kmph where D doubles his speed every hour. if D reaches A in 45/8hours.at what time did C and D meet each other
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Step-by-step explanation:
Let the speed of Q be ‘s’ initially.
37/8 = 4 and 5/8 hours.
s+2*s+4*s+8*s+16*5/8*s = 300
25*s = 300
s = 12 km/h
In 1 hour, P covers 30 km and Q covers 12 km, Total 42 km.
In 2 hours P covers 60 km and Q covers 36 km, total 96 km.
In 3 hours P covers 90 km and Q covers 84 km, total 174 km.
In 4 hours P covers 120 km and Q covers 180 km, total 300 km.
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