4. By selling a dozen pencil at the cost of30, the shopkeeper gains *

1.	4. By selling a dozen pencil at the cost of30, the shopkeeper gains * 10. Hispercentage of profit was (1) 20(2) 35(3) 50(4) 66
Answer» Step-by-step explanation: We KNOW that S.P. = C.P. + GAIN ⇒ S.P. of 8 DOZEN = C.P. of 8 dozen + S.P. of 1 dozen ⇒ S.P. of 7 dozen = C.P. of 8 dozen ⇒ By selling 7 dozen, he gain 1 dozen Therefore, gain % =71×100% =1472%

4. By selling a dozen pencil at the cost of30, the shopkeeper gains * 10. Hispercentage of profit was (1) 20(2) 35(3) 50(4) 66

Answer»

Step-by-step explanation:

We KNOW that S.P. = C.P. + GAIN

⇒ S.P. of 8 DOZEN = C.P. of 8 dozen + S.P. of 1 dozen

⇒ S.P. of 7 dozen = C.P. of 8 dozen

⇒ By selling 7 dozen, he gain 1 dozen

Therefore, gain % =71×100% =1472%

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4. By selling a dozen pencil at the cost of30, the shopkeeper gains * 10. Hispercentage of profit was (1) 20(2) 35(3) 50(4) 66​

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4. By selling a dozen pencil at the cost of30, the shopkeeper gains * 10. Hispercentage of profit was (1) 20(2) 35(3) 50(4) 66