Ben had some red, blue and yellow cards. He had 156 more blue cards than red cards and 2/3 as many yellow cards as red cards. He gave away 1/3 of his red cards, 5/6 of his blue cards and 50% of his yellow cards. In the end, he had 250 cards left. (a) How many cards did Ben have at first? (b) How many blue cards did Ben give away?
Ben had some red, blue and yellow cards. He had 156 more blue cards than red cards and 2/3 as many yellow cards as red cards. He gave away 1/3 of his red cards, 5/6 of his blue cards and 50% of his yellow cards. In the end, he had 250 cards left. (a) How many cards did Ben have at first? (b) How many blue cards did Ben give away?
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Ben had some red, blue and yellow cards. He had 156 more blue cards than red cards and 2/3 as many yellow cards as red cards. He gave away 1/3 of his red cards, 5/6 of his blue cards and 50% of his yellow cards. In the end, he had 250 cards left.
(a) How many cards did Ben have at first?
(b) How many blue cards did Ben give away?
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