Question

toffes are bought at 15 for ₹20 how many toffes would be sold for₹ 20 so as to gain 25% ​

Answer 1

Answer:

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Answer 2

Given :-

• The cost of 15 toffes = ₹20

To Find :-

• No of toffes sold for ₹20 with 25% gain

Solution :-

$\ \: { \sf{the \: cost \: of \: toffes \: = \: 20 \: rupees}} \\ \\ \ \: { \sf{cost \: of \: 1 \: toffe \: = \: \frac{20}{15} = \frac{4}{3} \: rupees}} \\ \\ \ \: { \sf{gain \: is \: 25\% \: of \: \frac{4}{3} \: rupees }} \\ \\ \ \: { \sf{sp \: of \: 1 \: toffe = (cp + gain) \: of \: 1 \: toffe}} \\ \\ \ \: { \sf{ \implies \: sp = \frac{4}{3} + \frac{4}{3} \times \frac{25}{100} }} \\ \\ \ \: { \sf{ \implies \: sp = \frac{4}{3} + \frac{1}{3} }} \\ \\ \ \: { \sf{ \implies \: sp = \frac{5}{3} \: rupees }} \\ \\ \ \: { \sf{no \: of \: toffes \: sold \: for \: 20 = \frac{total \: cost}{each \: toffe \: cost} }} \\ \\ \ \: { \sf{ \implies \: \frac{20}{ \frac{5}{3} } }} \\ \\ \ \: { \sf{ \implies \: 12 \: toffes}} \\ \\ \red{ \sf{no \: of \: toffes \:sold \: for \: 20rupees = 12}}$

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