25 December, 07:29
I bought 3 Books my total is 150$ 1 book is 50% more expensive than all of them how much is it
25 December, 08:36
The more expensive book cost $90, the other two combined cost $60.
x = cost of more expensive book
y = subtotal cost of the other books
x = 50% more than y, so x = 1.50y = 1.5y
x + y = total cost = $150
1.5y + y = 150
y = 150/2.5 = 60
x = 1.5y = 1.5 (60) = 90
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» I bought 3 Books my total is 150$ 1 book is 50% more expensive than all of them how much is it