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I.Rajesh has cycled 25 km until now, but of the distance still remains to be cathe total distance he will cycle? Hint: fraction of distance already covered

Answer»

let total Distance = x km.3/5 distance still remains to cover =3x/5 kmhe covers the distance = x-3x/5 = 2x/5 km

A/Q2x/5 = 252x = 25*5 =125x = 125/2

Hence, the total Distance = 125/2 km ANS..



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Secondary SchoolMath5 points

Rajesh can walk at 5 M per second on cycle at 20 metre per second. it takes 45 second to cover a distance of 600 M using a combination of two Modes of transport. how long did Rajesh cycle

Ask for detailsFollowReportbyDivyansh199919.06.2018

Answers



shivamdalmiaAmbitious

Speed he has of walking = 5 m/s

Let time taken on walking be pSpeed she has on cycle = 20 m/s

Let time taken on cycle be qSo, we have following equations

5p + 20q = 600p + q = 45So, p = 45 - qPutting this in 1st equation, we get5(45 - q) + 20q = 600225 - 5q + 20q = 60015q = 600 - 225q = 375/15q = 25Andp = 20Therefore, he cycled for 25 secs, and walked for 20 secs.


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