solve and explain this problem
Attachments:
Answers
Answered by
3
We are given :-
(x + y + z) ÷ 3 = 45
=> x + y + z = 135 ---(1)
and, x = (y + z) ÷ 2 + 9
=> 2x - y - z = 18 ---(2)
and, (y + z) ÷ 2 = y + 2
=> y = z - 4 ---(3)
Substituting y = z - 4 in equation (2) :-
2x - z + 4 - z = 18
2x - 2z = 14 => x - z = 7
Thus, (3) is the correct option for this particular problem.
Hope it'll help you.....
(x + y + z) ÷ 3 = 45
=> x + y + z = 135 ---(1)
and, x = (y + z) ÷ 2 + 9
=> 2x - y - z = 18 ---(2)
and, (y + z) ÷ 2 = y + 2
=> y = z - 4 ---(3)
Substituting y = z - 4 in equation (2) :-
2x - z + 4 - z = 18
2x - 2z = 14 => x - z = 7
Thus, (3) is the correct option for this particular problem.
Hope it'll help you.....
Similar questions