Question

walking at 1/4 of her normal speed ram takes 2hours more than the normal time what is normal
time.
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Answer 1

Answer:

40mins

Step-by-step explanation:

let s be the normal speed and t be the normal time ,

then s2 = 0.25s1, t2 = t1+ 120mins,

here distance is constant,

and we know that distance is equal to product of speed and time.

therefore, s1*t1 = s2*t2,

=> s1*t1 = (0.25s1)(t1+120),

=> t1 = 0.25t1 + 30,

=> 0.75 t1 = 30,

=> t1 = 40mins.

Hope it helps u ...