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Geeta bought eggs at Rs 8.40 a dozen.. At what price per hundred must she sell them so as to earn a profit of 15 percent?

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by poojabisht

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by poojabisht

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let x be the cost of eggs per 100. then,

8.40/12 = x/100 <direct proportion>

= 8.40×100 = 12x

= 840/12 = x

= 70 = x

the cost of eggs per 100 is Rs70.

15% of 70 = 15/100×70 = 10.5

70+10.5 = 80.5

Geeta must sell the eggs at the cost of Rs80.50 per hundred to earn a profit of 15 percent.

8.40/12 = Rs 0.7

Cost of 100 eggs =

0.7 * 100

= Rs 70

15/100 * 70

= 10.5

70 + 10. 5

= Rs 80.5