Answer: James sold 300 tickets to adults
Explanation:
A.T.Q, equations will be:
x+y = 450
2x+5y= 1800
Substitute value of x from equation (1), in equation (2)
2(450-y) +5y=1800
900-2y+5y=1800
3y=900
y=300
so, your answer is 300
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