Question

Renu completed $\frac{2}{3}$ part of her homework in 2 hours. How much part of her homework had she completed in 1 $\frac{1}{4}$ hours?

Answer 1

the part of the work finished by Renu in 2 h $=\frac{2}{3}$
So the part of the work finished By Renu in 1 h $=\frac{2}{3}÷2=\frac{2}{3}\times \frac{1}{2}=\frac{1}{3}$
$\therefore$ the part of the work finished by Renu in $1\frac{1}{4}h=\frac{1}{3}\times 1\frac{1}{4}$
$=\frac{1}{3}\times \frac{(1\times 4)+1}{4}=\frac{1}{3}\times \frac{5}{4}=\frac{5}{12}$ part
Hence $\frac{5}{12}$ part of Renu's home work is completed by her in $1\frac{1}{4}$ h.