Question

7. Which of the ratio is greater than?
(a) 2 : 3 or 4 : 9
(b) 45 : 35 or 30 : 21​

Answer 1

Step-by-step explanation:

cross - multiplication

a. 2*9 = 18 , 3*4 = 12

so, 2:3 is greater

b. 45*21 = 945 , 35*30 = 1050

so, 30:21 is greater

Answer 2

Step-by-step explanation:

a) 2:3

proof

2:3 4:9

2/3 4/9

0.66 0.44

as 0.66 is greater than 0.44 so 2:3 is greater

b) 30:21

proof

45:35 30:21

45/35 30/21

1.28. 1.42

here 1.42 is greater so 30:21 is greater