RATIOS C4

If 6: 5 = 18 : B; Find the value of B.

Solution

6   =  18                            [cross multiply]

5        B

6 x B = 5 x 18

6B = 90

6B = 90                      [divide by 6 on both sides]

6        6

B = 15

Hence the value of B is 15

TRY THIS…………

If 7:4 = 14: c; Find the value of c.