Question

An adolescent snail’s mass is 60% of an adult. The adolescent snail’s mass is 39 grams. What is the adult’s mass, in grams? 41 45 62 65

Answer 1

An adolescent snail’s mass is 60% of an adult. The adolescent snail’s mass is 39 grams .The adult mass is equal to 65 grams.

Solution:

Given that adolescent snail’s mass is 60% of an adult.

Let assume mass of an adult = x grams

So adolescent snail’s mass = 60% of x grams

`=(60)/(100) * x`

adolescent snail’s mass =
`(3 x)/(5)` --- eqn 1

From question, it’s given that adolescent snail’s mass is 39 grams.

So we can say eqn1 is equal to 39

`(3 x)/(5)=39`

`3 x=39 * 5`

3x=195

x = 65 grams

Hence the adult mass is equal to 65 grams.