Question

3. The product of two rational number is 36/75 . If one of them is 3/-5 what is the other rational number?

i)12/-15
ii)20/25
iii)4/5
iv)None of these​

Answer 1

Answer:

Let the two numbers be X and Y.

Therefore ,

X×Y.

According to the question,

X=9/16.

9/16×Y= -36/5

So we have to find the value of Y.

Therefore

Y= -36/5×16/9

Y= -4/5×16

Y= -64/5

hope it helps.........

Answer 2

Answer:

suppose second no. be x

then according to question

$x \times \frac {3}{ - 5} = \frac{36}{75} \\ x \times 3 = \frac{36}{75} \times ( - 5) \\ x \times 3 = - \frac{36}{15} \\ x = \frac{ - 36}{15} \times 3 \\ x = \frac{ - 36}{5 } \\ so \: the \: other \: rational \: no \: is \: \frac{ - 36}{5}$