Question

7. Rafiq exercised for 3/6 of an hour, while Rohit exercised for 3/4 of an hour. Who exercised
for a longer time and by how much.​

Answer 1

Answer:

Rohit exercised for a longer time by 15 minutes

Answer 2

SOᒪᑌTIOᑎ :-

Rafiq exercised for $\large \frac{3}{6}$ hours.

And, Rohit excercised for $\large \frac{3}{4}$ hours.

Now, $\large \frac{3}{6} = \frac{3 × 2}{6 × 2} = \frac{6}{12}$

and, $\large \frac{3}{4} = \frac{3 × 3}{4 × 3} = \frac{9}{12}$

$\large \: \: \frac{9}{12} > \frac{6}{12} \: i.e, \: \frac{3}{4} > \frac{3}{6}$

Thus, Rohit excercised for a longer time.