Time and Distance Practice Test 2 with solutions

Question : 12 of 40

Marks: +1, -0

Kanchan walks from her home at 4 kms per hour and reaches her school 5 minutes late. If she walks at 5 kms per hour, she reaches the school 2½ minutes earlier. How far is the school from her home?

3.5 kms
2.5 kms
2.75 kms
3.2 kms

Validate

Solution:

Suppose the distance between her house to the school = x km
Difference of time =

5/2 - (-5)

{15}/2

min =

1/8

hr.

x/4 - x/5

1/8

⇒

x/{20}

1/8

∴ x =

{20}/8

= 2.5 kms

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