Answer:
<u>12 years</u>
Step-by-step explanation:
Let Kishor's present age be denoted by x.
According to the question :
Therefore, the equation is :
Solving :
<u></u>
Hence, Kishor's present age is <u>12 years</u>.
-1.5
k = 3
Given that y and x are directly related then the equation relating them is
y = kx ← k is the constant of variation
To find k use the condition y = 81 when x = 27
k = = = 3