Question

Danny and his friend we have a combined weight of 150 kg any weight is 84 kg less than twice of his friend with how much does each of them weight

Answer 1

Answer:

Danny weight = 72 kg

Friend weight = 78 kg

Step-by-step explanation:

Let say Danny Weight  = D kg

and Let Friend Weight =  F kg

Danny and his friend  have a combined weight of 150 kg

D + F = 150   - Eq 1

Danny weight is 84 kg less than twice of his friend

D = 2 F - 84    - Eq 2

Putting value of D from Eq 2 into Eq 1

2F - 84 + F = 150

=> 3F = 150 + 84

=> 3F = 234

=> F = 78

so friend Wight = 78 kg

D + F = 150

=> D + 78 = 150

=> D = 150 -78

=> D = 72 kg

Danny Weight = 72 kg