Question

2) Find to complete the prepertion.
2:5=6: ,16:20=:35​

Answer 1

Answer:

2:5 = 6:15 ( as 2x 3=6 so 5 x3 =15)

16:20 = 28:35 ( as 16:20 can be simpfly4:5; so as 4 x 7  =28 so 5 x7 =35)

Answer 2

Answer:

(i) 2 : 5 = 6 : 15

(ii) 16 : 20 = 28 : 35

Step-by-step explanation:

(i)

Let the missing number be a.

2 : 5 = 6 : a

2 / 5 = 6 / a

2 a = 5 x 6

a = 30 / 2

a = 15

Therefore, 2 : 5 = 6 : 15

(ii)

Let the missing number be a.

16 : 20 = a : 35

16 / 20 = a / 35

4 / 5 = a / 35

5 a = 4 x 35

a = 4 x ( 35 / 5 )

  = 4 x 7

a = 28

Therefore, 16 : 20 = 28 : 35