2.1 class 7question 6 salil wants to put a picture in a frame is 7 3

This question was asked in Ex 2.1, 6

2.1 class 7question 6 salil wants to put a picture in a frame is 7 3 —5 Cmwide.
to fit in the frame the picture cannot be more then 7 3—10 Cm Wide. How much should the the picture be trimmed.