A) 120, 180, 240
B) 180, 150, 200
C) 200, 180, 120
D) 180, 200, 140
Correct Answer: A
Solution :
[a] Ratio of amount of coins \[=\frac{2}{2}:\frac{3}{4}:\frac{4}{10}\] \[=20:15:8\] Amount of 50p \[=\frac{129\times 20}{43}=60\] Amount of 25p \[=\frac{129\times 15}{43}=45\] Amount of 20p \[=\frac{129\times 8}{43}=24\] \[\therefore \] Number of each types of coins \[=\,\,\,60\times 2,\,\,45\times 4,\,\,24\times 10\] = 120, 180, 240You need to login to perform this action.
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