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Ramu walks at 3kms per hour while his brother Somu walks at 4kms per hour. They both started to school, which is 2kms away from their house at 7:00 A.M. Then, which of these is are correct?

  1. Somu reaches school at 7:20 AM

  2. Somu reaches school 10 mins earlier than Ramu

  3. Ramu reaches school at 7:30 AM

  4. All the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Ramu =3 kmph Somu =4 kmph Both starts at 7 AM Distance =2km

Time taken by Ramu ⇒S=v×t

2=3×t

t=23hr=23×60

=40min

Time taken by Somu ⇒2=4×t

t=12hr=30 min.

∴ Somu reaches school 10 mins earlier than Ramu.

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