Question 12-5- 5 1-5 is equal toa 26-25b 52-25c 2-5d 6

Name: EXEMP - Grade 07 - Mathematics - Fractions & Decimals - Q1
Uploaded: 2022-07-04T10:36:42+05:30
Description: Given ,2/5× 51/5 ∵ 5 1/5 = (5 ×5)+1/5 = 25+1/5=26/5 ∴2/5× 5 1/5 = 2/5×26/5 = 52/25 ...

Given ,2/5× 51/5 ∵ 5 1/5 = (5 ×5)+1/5 = 25+1/5=26/5 ∴2/5× 5 1/5 = 2/5×26/5 = 52/25 ...

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Standard X

Mathematics

General Form of an AP

Question 12/5...

Question

Question 1

$\frac{2}{5} \times 5 \frac{1}{5}$ is equal to
(a) $\frac{26}{25}$
(b) $\frac{52}{25}$
(c) $\frac{2}{5}$
(d) 6

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Solution

Given , $\frac{2}{5} \times 5 \frac{1}{5} ∵ 5 \frac{1}{5} = \frac{(5 \times 5) + 1}{5} = \frac{25 + 1}{5} = \frac{26}{5} ∴ \frac{2}{5} \times 5 \frac{1}{5} = \frac{2}{5} \times \frac{26}{5} = \frac{52}{25}$

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Question 18

$2 \frac{2}{3} \div 5$ is equal to

(a) $\frac{8}{15}$
(b) $\frac{40}{3}$
(c) $\frac{40}{5}$
(d) $\frac{8}{3}$

Q. The rationalisation factor of

\frac{1}{2 \sqrt{3} - \sqrt{5}}

is
(a)

\sqrt{5} - 2 \sqrt{3}

(b)

\sqrt{3} + 2 \sqrt{5}

(c)

(\sqrt{3} + \sqrt{5})

(d)

\sqrt{12} + \sqrt{5}

Question 12

$5 \frac{1}{6} \div \frac{9}{2}$ is equal to

If 2 $^{x}$ x 8 $^{1 / 5}$ = 2 $^{1 / 5}$ , then x is equal to

Question 14

$\frac{3}{7}$ of $\frac{2}{5}$ is equal to

(a) $\frac{5}{12}$
(b) $\frac{5}{35}$
(c) $\frac{1}{35}$
(d) $\frac{6}{35}$

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General Form of an AP

Standard X Mathematics

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Question 1 25×515 is equal to (a) 2625 (b) 5225 (c) 25 (d) 6

Given ,25×515∵515=(5×5)+15=25+15=265∴25×515=25×265=5225

Question 1

$\frac{2}{5} \times 5 \frac{1}{5}$ is equal to
(a) $\frac{26}{25}$
(b) $\frac{52}{25}$
(c) $\frac{2}{5}$
(d) 6

Given , $\frac{2}{5} \times 5 \frac{1}{5} ∵ 5 \frac{1}{5} = \frac{(5 \times 5) + 1}{5} = \frac{25 + 1}{5} = \frac{26}{5} ∴ \frac{2}{5} \times 5 \frac{1}{5} = \frac{2}{5} \times \frac{26}{5} = \frac{52}{25}$