The correct option is A 2.5 Let ? be x 8.8=6+7x 8.8 6=7x 7x=2.8 72.8=x x=52 x=2.5 Hence option A is correct. ...

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Standard VIII

Mathematics

Simplification of an Expression

Find ? 8.8...

Question

Find $?$
$8.8 = 6 + ?$

2.5

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2.8

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2.2

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None of these

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Solution

The correct option is A $2.5$
Let $?$ be x
$8.8 = 6 + \frac{7}{x}$

$8.8 - 6 = \frac{7}{x}$

$\frac{7}{x} = 2.8$

$\frac{7}{2.8} = x$

$x = \frac{5}{2}$

$x = 2.5$
Hence option A is correct.

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Similar questions

	A	A	B	B	C	C	D	D	E	E
	M	S	M	S	M	S	M	S	M	S
$2006$	$2.8$	$1.3$	$3.3$	$2.2$	$2.6$	$1.7$	$3.0$	$2.2$	$1.9$	$1.4$
$2007$	$3.2$	$2.0$	$2.4$	$1.6$	$2.2$	$1.5$	$2.5$	$1.9$	$2.0$	$1.7$
$2008$	$1.9$	$0.9$	$2.9$	$1.6$	$2.1$	$1.0$	$2.3$	$1.5$	$1.6$	$1.1$
$2009$	$1.0$	$0.4$	$2.4$	$1.3$	$2.8$	$1.4$	$2.1$	$1.2$	$3.2$	$2.5$
$2010$	$2.5$	$1.5$	$2.3$	$1.2$	$2.6$	$2.1$	$1.8$	$1.1$	$3.1$	$2.6$

What is the total number of units manufactured by company C over all the years together?

Q. The weight of new born babies (inn kg) in a hospital on a particular day are as follows
2.3, 2.2, 2.1, 2.7, 2.6, 3.0, 2.5, 2.9, 2.8, 3.1, 2.5, 2.8, 2.7, 2.9, 2.4
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No.of plants. 0-2. 2-4. 4-6. 6-8. 8-10. 10-12. 12-14

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Q. Which of the following is the correct order?
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The weights of newborn babies (in kg) in a hospital on a particular day are as follows:
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Find ?8.8=6+?

The correct option is A 2.5Let ? be x8.8=6+7x8.8−6=7x7x=2.872.8=xx=52x=2.5Hence option A is correct.

Find $?$
$8.8 = 6 + ?$

The correct option is A $2.5$
Let $?$ be x
$8.8 = 6 + \frac{7}{x}$

$8.8 - 6 = \frac{7}{x}$

$\frac{7}{x} = 2.8$

$\frac{7}{2.8} = x$

$x = \frac{5}{2}$

$x = 2.5$
Hence option A is correct.