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Ratio (Pri-6)

/ Ratio Juying Primary School / Homework (2018)
Examination Paper 1 The ratio of the number of foreign stamps to local stamps in a stamp album is 16. 9 : 7. There are 245 local stamps and rest are India and Malaysia stamps. The atio of the number of India and Malaysia stamps is 2:3. After some Malaysia stamps are removed, the number of Malaysia stamps is 5 of the number of local stamps. Find the number of Malaysia stamps removed.
Kh

July 17, 2018
 
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Answer 3 Comments 1
Jul 17, 2018 09:21 AM
2 ways of solving, see inside :)

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July 17, 2018
F  :    L  9   :   7  (245)------------I   :   M2   :   3------------Fr L -> 7U = 245               U = 245 ÷ 7 = 35Fr F -> 9U = 9 × 35 = 315M = 35(315) = 18925 of L = 25 (245) = 98So no. of M stamps removed = 189 - 98 = 91 (ans)
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July 17, 2018
Kh
pls help asap!!!
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July 17, 2018
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