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primary 5 | Maths
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After the transfer
Date Posted: 1 year ago
Views: 263
try backwards
total unchanged - internal transfer
in the end
K:L:K+L = 3u : 1u : 4u
at first
K:L:K+L = 3u-20 : 1u+20 : 4u
K-L = 3u-20-1u-20 = 2u-40 = 50
u = 45
3u-20 = $115 (Ans)
total unchanged - internal transfer
in the end
K:L:K+L = 3u : 1u : 4u
at first
K:L:K+L = 3u-20 : 1u+20 : 4u
K-L = 3u-20-1u-20 = 2u-40 = 50
u = 45
3u-20 = $115 (Ans)
See 1 Answer
missed out 1 step 135 - 20 = 115
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