Question

if a student had walked 1km/hr faster he would have taken 15min less to walk 3km find the rate at which he was walking

Answer 1

solution:

spped of student= 1 km/hr

or,1000m/60min


Now,student have travelled 3km or 3000m in 45 min

so, speed= Distance/time

= Speed= 3000/45

= 66.6 m/min

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