Find the multiplicative inverse of -1-25-

1×( 25)=25 ∴25×52 =1 The multiplicative inverse of 1×( 25) is 52. ...

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Standard VIII

Mathematics

Finding Rational Numbers between Two Rational Numbers Using Mean Method

Find the mult...

Question

Find the multiplicative inverse of $- 1 \times (\frac{- 2}{5})$ .

\frac{5}{5}

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\frac{5}{2}

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\frac{1}{5}

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\frac{2}{5}

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Solution

The correct option is B $\frac{5}{2}$
$- 1 \times (\frac{- 2}{5}) = \frac{2}{5}$
$∴ \frac{2}{5} \times \frac{5}{2} = 1$
The multiplicative inverse of $- 1 \times (\frac{- 2}{5})$ is $\frac{5}{2}$ .

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Similar questions

Q. Question 4(v)
Find the multiplicative inverse of the following:

- 1 \times \frac{- 2}{5}

Q. Find the multiplicative inverse of the following.
(i)

- 13

(ii)

\frac{1}{5}

(iii)

\frac{- 5}{8} \times \frac{- 3}{7}

(iv)

- 1 \times \frac{- 2}{5}

(v)

- 1

$Find the reciprocal (multiplicative inverse) of : (i) \frac{3}{5} \times \frac{2}{3} (i i) \frac{- 8}{3} \times \frac{13}{- 7} (i i i) \frac{- 3}{5} \times \frac{- 1}{13}$

Q. Question 4(iii)
Find the multiplicative inverse of the following:

\frac{1}{5}

Q. Find the multiplicative inverse of

- 1 \times (\frac{- 2}{5})

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Find the multiplicative inverse of −1×(−25).

The correct option is B 52−1×(−25)=25 ∴25×52=1 The multiplicative inverse of −1×(−25) is 52.

Find the multiplicative inverse of $- 1 \times (\frac{- 2}{5})$ .

The correct option is B $\frac{5}{2}$
$- 1 \times (\frac{- 2}{5}) = \frac{2}{5}$
$∴ \frac{2}{5} \times \frac{5}{2} = 1$
The multiplicative inverse of $- 1 \times (\frac{- 2}{5})$ is $\frac{5}{2}$ .