Question

Walking at 2/3 rd of her usual speed,a lady is 1 1/2hrs late.Find her usual travel time?

Answer 1

3 hrs.

since distnce is same...vt is same .. since ratio of velocity is 2/3,ratio of time taken is 3/2...

that means... 0.5 times the initial time is added... this is one and half hour.. so twice of that will be initial time .. so initial time is 3 hrs