Rohan spent half of his pocket money to buy a video game. He spent half of the remaining money to buy a book. Then, he spent half of the remaining to buy colour pencil. He was left with $40. How much money did he have in the beginning??
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Answer: 320$
Step-by-step explanation: if he is left with 40 which is half to buy colour pencils then he had double of 40 which is 80. Then again double of 80 for book which is 160. Again double of 160 for video game which is 320. Rohan had 320 dollars in the beginning.
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