Question

asha drives at a speed of 30 km/h . she reaches her office 12minutes late.if she increases the speed by 10 km/h , then she reaches 8 minutes early.what is the distance of her office from her home​

Answer 1

Answer:

you had not given the time he reaches

Answer 2

The distance of her office from her home is 8 km.

Step-by-step explanation:

Since we have given that

Speed at which Asha drives = 30 km/hr

She gets late by 12 minutes

Speed at which Asha drives to reach early = 30+10 = 40 km/hr

She reached early by 8 minutes

So, Let the distance of her office from her home be 'x'.

According to question, it becomes,

$\dfrac{x}{30}-\dfrac{x}{40}=12-8=\dfrac{4}{60}\\\\\dfrac{4x-3x}{120}=\dfrac{4}{60}\\\\\dfrac{x}{120}=\dfrac{4}{60}\\\\x=\dfrac{120\times 4}{60}\\\\x=8\ km$

Hence, the distance of her office from her home is 8 km.

# learn more:

Walking at a speed of 5kmph,lisa reaches office 10minutes late.if she walks at 10 kmph she reaches 5 min early.how far is her office

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