Question

The missing number in 10 : ? = 45 : 90 is :

Answer 1

Answer:

100

Step-by-step explanation:

10:x=45:90

10×90/45

900/45

100/5

20

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Answer 2

Answer:

Value of? Is 20

Step-by-step explanation:

10:? = 45 :90

Lets take? = x

Cross multiplying each other

10 = 45

x. =. 90

45x = 90 × 10

x = 900

45

x = 20