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Ratio (Pri-6)

/ Ratio Admiralty Primary School / Homework (2018)
Johannas, Kukan and Lionel had a total of 720 cards. The ratio of the number of cards Kukan had to the number of cards Lionel had was 1 3. After Johannas and Kukan each gave away of their cards, the 3 children had 630 cards left. How many cards did Kukan have at first?
Ji

August 3, 2018
 
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Answer 1 Comments 1
Aug 3, 2018 06:34 AM
GUIDE: tabulate before & after quantities for all in terms of K, then using J quantities to solve

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From J, after giving 14 away:34 (720 - 4K) = 630 - 334 K540 - 3K = 630 - 334 K34 K = 90K = 120 (ans)
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August 3, 2018
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