Question

The table shows numbers with the ratio x : y? Find the missing number?

x 1 15 225
y 4 ? 900

Answer 1

x| 1 | 15 | 225 |
y| 4 | ? | 900 |


`(y)/(x)=const.`

therefore

[tex]\dfrac{4}{1}=4;\ \dfrac{900}{225}=4;\ \dfrac{?}{15}=4\to?=60[\tex]

Answer: ? = 60

Answer 2

The value of missing number is:

60

Explanation:

The ratio x:y is given below

x:y=1:4

x:y=15:?

x:y=225:900

The ratio x:y will remain same for every x and y

Hence, 1:4=15:?

Let a=?

`(1)/(4)=(15)/(a)`

`a=15* 4`

a=60

Hence, the value of missing number is:

60