Question

Which of the following numbers is the multiplicative inverse of - 15/31 ?

31/15

- 31/15

- 15/31

15/31

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Answer 1

Answer:

-31/15

May this will help u....

Answer 2

To understand the answer first we have to see the concept of multiplicative inverse :-

• Multiplicative Inverse is the reciprocal of a number which, when multiplied with the original number gives 1.

For example:-

$2 \times \frac{1}{2} = 1$

Answer:-

$\frac{ - 15}{31} \times x = 1$

$x = 1 \div \frac{ - 15}{31}$

$x = 1 \times \frac{ - 31}{15}$

Hence, (B) is correct i.e.

$\frac{ - 31}{15}$