Kusum Wadhwa and Anju Loomba Solutions for Chapter: Time and Temperature, Exercise 4: Exercise 10.2

Find the sum.

 $4 \mathrm{minutes} 35 \mathrm{seconds}+5 \mathrm{minutes} 50 \mathrm{seconds}$

Find the sum

$4 \mathrm{hours} 30 \mathrm{miutes}+2 \mathrm{hours} 38 \mathrm{minutes}$

Find the difference

$9 \mathrm{minutes} 20 \mathrm{seconds}-7 \mathrm{minutes} 35 \mathrm{seconds}$

Find the difference

$8 \mathrm{hours}-5 \mathrm{hours} 40 \mathrm{minutes}$

Anand has been in a school for $8$ years, while Nilay has been in the same school for $5$ years $9$ months. Who has been in this school for a longer duration and by how many years and months?

Prateeksha’s school was closed for $15$ weeks. She went to Chandigarh for $4$ weeks $3$ days and to Manali for $3$ weeks. She spent the rest of her holidays in Jammu. For how many weeks and days was she in Jammu?