Find the sum of the number of hours spent by Ajay,Priya and Rohan together first and then the sum of total number of hours spent by Ria and Ankita and then find the difference.

See the scale chosen in the question.

Remember the scale chosen here.

Recall the steps to create pictographs.

Choose the correct scale.

Try to recall the the other name of pictograph.

See the scale chosen here first and make a table and then proceed.

Remember the scale chosen here.