Question
A car completes a journey in 6 hrs with a speed of 50
km/hr. At what speed must it travel to complete the journey in 5 hrs?Solution
Distance=Speed ×Time Distance = 50×6=300 km To complete the journey in 5 hours Speed = 300/5 = 60 km/hr
The least number which when divided by 6, 7, 10, 13, and 15 leaves the same remainder 5 in each case, is:
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