Answer:
138
Explanation:
Use the symbols A for number of marbles Abdul has
D for number Durai has and M for number Mutha has, then
D + A = 328 , M + D = 176
Since A = 5M then D + 5M = 328
We now have 2 equations in D and M which we can solve
D + 5M = 328 → (1)
D + M = 176 → (2)
Subtract (2) from (1) term by term
(D - D ) + (5M - M ) = (328 - 176 )
4M = 152 ( divide both sides by 4 )
M = 38
substitute M = 38 into D + M = 176
D + 38 = 176 ( subtract 38 from both sides )
D = 138
Hence Durai has 138 marbles