Question

Sunil and his friend Rahul have a combined weight of 150 kg. Sunil weighs 84 kg less than twice his friend's weight. How much does each of them weigh?​

Answer 1

sum of their ages is: 150kg

let Rahul's weight be x

so Sunil's weight is: 2x - 84

x + 2x - 84 = 150

3x - 84 = 150

3x = 234

x = 78

so Sunil's age is 72

and Rahul's age is 78

Answer 2

Answer:

Let x be the Rahul's age:

Therefore,Sunil's age=2x-84

=> x +2x-84=150

=>3x-84=150

=>3x=150+84

=>3x=234

=>x=234÷3

=>x=78

Therefore,Sunil's age=78kg

Rahul's age=150-78=72kg