Question

how much percentage be a to the cost price of good sold the profit 20% must be made after giving 10% discount ? shortcut methods​

Answer 1

Answer:

33.32

Step-by-step explanation:

given profit should be 20 % after giving 10% discount

let A=120 rs ,B= some value from which 10% should be deducted to get 120 rs is the question

clearly we can see that A is 10% less than B

so B is greater than A by (R/100-R)*100     (IMPORTANT FORMULA)

SO VALUE IS (10/100-10)*100

which gives 11.1%

11.1% is added to 120 rs which gives us 133.32 Rs and that's the value....

if u want cross check by deducting 10 % from 133.2 which gives 120.

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