Question

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Answer 1

Answer:

Time taken for Homework,

By Raj = 2 whole 1 / 4 hours

= 9 / 4 hours

By Seema = 8 / 3 hours

Comparison -

Raj = 9 / 4 = (9 × 3) / (4 × 3) = 27 / 12

Seema = 8 / 3 = (8 × 4) / (3 × 4) = 32 / 12

Clearly, (27 / 12) < (32 / 12)

Hence, Raj took less time.

By How much -

(32 / 12) - (27 / 12) hours

= (32 - 27) / 12 hours

= (5 / 12) hours

Hence, Raj took less time to complete his homework by (5 / 12) hours

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