Banking Exam Question - Math Question - Profit & Loss - Answer the Following Math Question?

Introduction - Profit & Loss Problem

Cost value (C.P.): This is the cost at which an article is acquired. Offering value (S.P.): This is the cost at which an article is sold. Benefit or Gain: If the offering cost is more than the cost value, the contrast between them is the benefit acquired. The rate benefit or misfortune can be figured by working out the distinction between the cost and the offering value, at that point separate this answer by the first value (cost) and duplicate by 100. So in case 1, you have to work out the rate benefit of the offer of a book.

Solution,

Here,

let's x be the per kg for daal

The seller's cost price = Rs. 70 
Discount percent = 5%

Here's profit = Rs. 6
Actual discount = x to 5%

Therefore, profit = SP - CP
Actual sale value = Rs. (x - x / 20) = 19x / 20
or, 6 = 19x / 20 - 70

or, 1520 = 19x
or, 6 = 19x - 1400/20
or, 120 = 19x - 1400
or, 120 + 1400 = 19x
or, x = 1520/19 = 80


    




    


Therefore Selling rate must be Rs.80