when the speed is 4 km/hr the time taken is T+4 mins.. if the speed is 6 k/hr the time taken is T-2 mins.. if the distance is constant find t
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Step-by-step explanation:
speed = distance/time
when distance is constant
speed1×time 1 = speed 2 × time 2
4×(t+4) = 6 ×(t-2)
4t+16 =6t-12
2t = 28
t=14 mins
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