Question

If 9 shirts cost Rs 810, what will be the cost of 27 shirts?​

Answer 1

Cost of 9 shirts = Rs 810

Cost if 1 shirt = 810 ÷ 9 = Rs 90

as, cost of 1 shirt is Rs90, cost of 27 shirts would be, 90×27 = Rs 2430

therefore, cost of 27 shirts will be Rs 2430

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Answer 2

Answer:

$\rm{Cost \: of \: 27 \: shirts } = Rs \: 2430$

Step-by-step explanation:

Cost of 9 shirts = Rs 810

$\rm{Cost \: of \: 1 \: shirt = \frac{Rs \: 810}{9} } \\ \\ \rm{Cost \: of \: 1 \: shirt = \frac{Rs \: \cancel {810}}{ \cancel 9} } \\ \\ \rm{Cost \: of \: 1 \: shirt }= Rs \: 90 \\ \\ \rm{Cost \: of \: 27 \: shirts }=27 \times Rs \: 90 \\ \\ \rm{Cost \: of \: 27 \: shirts } = Rs \: 2430$

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