Question

8. Sonia has a total of Rs 1360 as currency notes in the denominations of Rs
100, Rs 50 and Rs 10. The ratio of the number of Rs 50 notes and Rs 10 notes is
5:3. If she has a total of 24 notes, how many notes of each denomination she
has?

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Answer 1

Answer:

₹10 =

$\frac{27}{13} \times 3 = \frac{81}{13} = 6.23 \: note$

$amount = \frac{81}{13} \times 10 = \frac{810}{13} = 62.30$

₹50 =

$\frac{27}{13} \times 5 = \frac{135}{13} = 10.38 \: note$

$amount = \frac{135}{13} \times 50 = \frac{6750}{13} = 519.23$

₹100 =

$24 - (8 \times \frac{27}{13} ) \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 24 - \frac{216}{13} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ \: \: \: \: \: \: \: \: \: \: \: = 7.38 \: note \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:$

$amount = 7.38 \times 100 = 738 \: \: approx$

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