Latest navodaya Aptitude Question SOLUTION: Points A and B are 90 km apart from each other on a highway. A car starts from A and another from B at the same time. If they go in the same direction they meet in 9 hours and if t

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(#M40165546) NAVODAYA Numerical Ability question distance and time Keep an EYE

Points A and B are 90 km apart from each other on a highway. A car starts from A and another from B at the same time. If they go in the same direction they meet in 9 hours and if they go in opposite directions they meet in 9/7 hours. Find their sppeds.

Asked In navodaya ABHIRUCHI SHARMA (6 years ago)

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Devendra Marghade  (6 years ago)

40, 30 kmph

Let the speeds of cars starting from A & B be a & b kmph respectively.
Travelling in same direction, let the cars meets at a distance 'd' from B, then
(90+d)/A = d/B = 9
=> A - B = 10 ——(i)
Travelling in opposite directions, 90/(A+B)=9/7
=> A+B=70 ——(ii)
Solving (i) & (ii), A=40, B=30

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