Multiple choice

The cost price of 12 articles is the same as the selling price of “n” articles. If the profit is 20%, then the value of “n” is

  1. 15

  2. 10

  3. 9

  4. 20

  5. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Let C.P. of each article be Re.1.

C.P. of “n” articles = Rs. n,

S.P. of “n” articles = Rs. 12,

Profit = Rs. (12 - n),

Profit % = 20,

[(12 - n)/n] x 100 = 20,

1200 – 100n = 20n,

120n = 1200,

n = 10

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