Ratio and Proportion Solution17





In this page ratio and proportion solution17 we are going to see solution of each question from the worksheet ratio and proportion.

(37) A school collected Rs.2100 for charity. It was decided to divide the money between an orphanage and blind school in the ratio 3 : 4 how much money did each receive?

Solution:

The ratio of money to be divided = 3 : 4

3 x + 4 x = 2100

             7 x = 2100

                x = 2100/7         

                x = 300

3x = 3 (300) = 900

4 x = 4 (300) = 1200

Therefore orphanage will get Rs. 900

Bind school will get Rs.1200


(38) Two numbers are in the ratio 3 : 5. If 8 is added to each number, the ratio becomes 2 : 3. Find the numbers.

Solution:

Two numbers are in the ratio 3 : 5

(3 x + 8):(5x + 8) = 2 : 3

(3 x + 8)/(5x + 8) = 2/3

3 (3 x + 8) = 2 (5 x + 8)

9 x + 24 = 10 x + 16

9 x  - 10 x = 16 – 24

   -x  = -8

    x = 8          

Therefore the required number is 8.

ratio and proportion solution17 ratio and proportion solution17