Question

. There would be 10% loss if a toy is sold at Rs. 10.80 per piece. At what price should it be sold to earn a profit of 20%

Answer 1

according to the question 10.80 is the 80%of original price then
90=10.80*100/x (x is the original price )
x=10.80*100/90
x=12 rs so
we need 20 %profit then
we need to calculate 120%of x
120=y*100/12 (y is the price with 20 % profit)
120*12/100=y
y=14.4rs

Answer 2

Question

There would be 10% loss if a toy is sold at Rs. 10.80 per piece. At what price should it be sold to earn a profit of 20%?

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$\\\\Given,\ Loss\ percent=10\%\\\\S.P=Rs.\ 10.80\ and\ Profit\ percent=20\%\\\\Here\ we\ use\ formula\ CP=\bigg(\frac{100}{100-Loss\%}\bigg)SP\\\\=\bigg(\frac{100}{100-10}\bigg)\times10.80\\\\\implies CP=\frac{100}{90}\times10.80\\\\=Rs.\ 12\\\\Now,\ SP=\bigg(\frac{100+Profit\%}{100}\bigg)CP\\\\=\bigg(\frac{100+20}{100}\bigg)\times12\\\\=\frac{120}{100}\times12\\\\=\frac{1440}{100}\\\\=\fbox{Rs.\ 14.40 answer}$