Question

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

Answer 1

Answer:

The value of missing number is:

60

Step-by-step 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=?

$\dfrac{1}{4}=\dfrac{15}{a}$

$a=15\times 4$

a=60

Hence, the value of missing number is:

60

Answer 2

X| 1 | 15 | 225 |
y| 4 |  ?  | 900 |

$\dfrac{y}{x}=const.$

therefore

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

Answer: ? = 60