West Bengal Board Solutions for Chapter: Measurement of Time, Exercise 4: Let's do ourselves -19.2

Debubabu built a new house. He will built the two windows of his house. Each window has two panes. If he takes $2 \mathrm{hr} 15 \min$ to paint $1$ window pane, find how long  he will take to colour $2$ windows?

In $11 \mathrm{hrs} 36 \min$, Phani da can make $4$ exactly similar clay statues. Find how long will he take to make one such statue. He takes equal time to make each statue? (If the time is $x \mathrm{hours}, \mathrm{y} \min$, find $x+y$)

Find $3 \mathrm{hrs} 26 \min \times 4=$How many hours and mins?(If the time is $x \mathrm{hours}, \mathrm{y} \min$, find $x+y$)

Find $7 \mathrm{hrs} 13 \min \times 12=$How many hours and mins?(If the time is $x \mathrm{hours}, \mathrm{y} \min$, find $x+y$)

Find $3 \mathrm{hrs} 27 \min ÷9=$How many mins and sec?(If the time is $x \mathrm{hours}, \mathrm{y} \min$, find $x+y$)

Find $15 \mathrm{hrs}÷12=$How many $\mathrm{hrs}$ and $\mathrm{mins}$?(If the time is $x \mathrm{hours}, \mathrm{y} \min$, find $x+y?$)

Find  $5 \mathrm{hrs} 10 \min 4 \sec ÷4=$How many $\mathrm{hours}, \min , \mathrm{secs}?$ (If the time is $x \mathrm{hours}, \mathrm{y} \min$ and $z \sec$, find $x+y+z$)

Find $2 \mathrm{hrs} 32 \min 41 \sec \times 3=$How many $\mathrm{hours},\min ,\mathrm{secs}?$(If the time is $x \mathrm{hours}, \mathrm{y} \min$ and $z \sec$, find $x+y+z$)