The ratio of amount of money that Maya spent on food to the amount of money she spent on transport is\[9:10\]. If she spent the same amount on transport each month, how much did she spend on transport in a year?
A) \[Rs.\,\,1440\]
B) \[Rs.\,\,108\]
C) \[Rs.\,\,1296\]
D) \[Rs.\,\,120\]
Correct Answer: A
Solution :
Since \[AB\] is the diameter, and \[12%\] is spent on stationery, \[(50-12)%\] \[=38%\] is spent on food and transport in the ratio\[9:10\]. \[\therefore \]Percentage amount spent on transport per month is\[\frac{10}{19}\times 38%\] \[=20%\] Hence, amount spent on transport per month \[=\frac{20}{100}\times Rs.\,\,600=Rs.\,\,120\] Thus, amount spent on transport per year \[=12\times Rs.\,\,120=Rs.\,\,1440\]
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