If the profit per cent got on selling an article is numerically equal to its cost price in rupees and the selling price is Rs. 39, then cost price (in Rs.) will be:

  • 120
  • 222
  • 328
  • 430
Answer:- 1
Explanation:-

Solution:
SP = Rs. 39.
CP = x(let)
Profit % = CP
Or, [(39-x)/x] * 100 = x [% profit= (SP-CP)/CP]
3900-100x = x2
X2+100-3900 = 0
X = 30. (we cannot take negative value of x)

Post your Comments

Your comments will be displayed only after manual approval.

Test
Classes
E-Book