Find the missing number- X 30 35 45- Y 42 49 56 63- -

Observing the table, let the missing number be x 30/42 nbsp;= 35/49 nbsp;= x/56 nbsp;= 45/63 Consider x/56 nbsp;= 5/7 ∴ x = 40 ...

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Standard X

Mathematics

Direct Variation

Find the miss...

Question

Find the missing number.

$\begin{matrix} X & 30 & 35 & 45 Y & 42 & 49 & 56 & 63 \end{matrix}$

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Solution

Observing the table,

let the missing number be x

$\frac{30}{42} = \frac{35}{49} = \frac{x}{56} = \frac{45}{63}$

Consider $\frac{x}{56} = \frac{5}{7}$

$∴ x = 40$

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Find the missing number. X303545Y42495663

Observing the table, let the missing number be x 3042=3549=x56=4563 Consider x56=57 ∴x=40

Find the missing number.

$\begin{matrix} X & 30 & 35 & 45 Y & 42 & 49 & 56 & 63 \end{matrix}$

Observing the table,

let the missing number be x

$\frac{30}{42} = \frac{35}{49} = \frac{x}{56} = \frac{45}{63}$

Consider $\frac{x}{56} = \frac{5}{7}$

$∴ x = 40$