Question

the product of two rational number is a minus 4 by 5 if one of them is minus 8 by 15 find the other​

Answer 1

Answer:

Let the required rational number be x.

A.T.Q

-8/15 * x = - 4/5

x = - 4/5 ÷ -8/15

x = -4/5 * -15/8

x = 3/2

Hence, the other rational number is 3/2.

VERIFICATION:

-8/15 * 3/2 = -4/5

Answer 2

HERE IS YOUR SOLUTION

Let the two rational no.s be' x ' and 'y'.

one no. x= -8/15

$x \times y = - 4 \div 5(given) \\ ( - 8 \div 15) \times y = - 4 \div 5 \\ y = (- 4 \div 5) \times ( - 15 \div 8) \\ y = 3 \div 2$

Therefore the other no. is 3/2

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