If 11 x -7-81-7- the value of - x - will beA- x-7B- x-4C- x-1D- x-11

The correct option is B x = 411x/7 is a mixed fraction. ⇒ 11x/7 =(11 × 7) +x/7 =77 +x/7 Given, nbsp;(77 +x)/7 = 81/7 Comparing the numerators, we get 77 + x ...

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Standard VII

Mathematics

Like and Unlike Fractions

If 11 x /7=81...

Question

If $11 \frac{x}{7}$ = $\frac{81}{7}$ , the value of 'x' will be

x = 7

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x = 4

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x = 1

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x = 11

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Solution

The correct option is B x = 4
$11 \frac{x}{7}$ is a mixed fraction.

$\Rightarrow 11 \frac{x}{7} = \frac{(11 \times 7) + x}{7} = \frac{77 + x}{7}$

Given, $\frac{(77 + x)}{7} = \frac{81}{7}$
Comparing the numerators, we get
$77 + x = 81$

$∴ x = 81 - 77 = 4$

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If 11x7 = 817 , the value of 'x' will be

The correct option is B x = 411x7 is a mixed fraction. ⇒11x7=(11×7)+x7=77+x7 Given, (77+x)7=817 Comparing the numerators, we get 77+x=81 ∴x=81−77=4

If $11 \frac{x}{7}$ = $\frac{81}{7}$ , the value of 'x' will be

The correct option is B x = 4
$11 \frac{x}{7}$ is a mixed fraction.

$\Rightarrow 11 \frac{x}{7} = \frac{(11 \times 7) + x}{7} = \frac{77 + x}{7}$

Given, $\frac{(77 + x)}{7} = \frac{81}{7}$
Comparing the numerators, we get
$77 + x = 81$

$∴ x = 81 - 77 = 4$