1.

Ajay takes 21/5minutes to complete one round of the school ground . While Rahul takes 7/4minutes for the same .Who takes more time and by how much.

Answer»

Step-by-step EXPLANATION:

ajay takes 21/5 minutes = 4.2 minutes

RAHUL takes 7/4 minutes = 1.75 minutes

let the distance be X m

so to COVER the same distance X m ajay takes 4.2 minutes and rahul takes 1.75 minutes

so clearly ajay takes more time to complete the distance than rahul

here

more time taken by ajay = 4.2 - 1.75 = 2.45 minutes

or

21/5 - 7/4 => (84 - 35)/20 => 49/20 minutes


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