the ratio of Encik Arif's mass to his sons mass is 3:2 . If his son's mass is 42 kg, find Encik Arif's mass.

Step-by-step explanation:

Let Encik Arif's mass be x

the ratio of Encik Arif's mass to his son's mass is 3:2

That's

The son's mass is 42, so the ratio of Encik Arif's mass to his son's is

x : 42

That's

Now equate the two fractions

That's

Cross multiply

3(42) = 2x

126 = 2x

Divide both sides by 2

We have the final answer as

Hope this helps you

because linear equations are a lot simpler than quadratics equations, and linear equations formula is a lot easier to memorize. that's why i think they're harder.