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Divyanshu Arya

· started a discussion

· 1 Months ago

problem in this ques? (Question: 127358.0 )

can any one solve it...with an appropriate solution..

Question:

A shopkeeper sells an object for 25% profit. If he buys it for 25% less and sells it for Rs.25 less then he earns 25% profit. What is the original cost price?

Options:
A)

 

Rs. 80

B)

Rs. 79

C)

Rs. 40

D)

Rs. 70

E)

None of these

Solution:

Ans: (a)


Knowledge Expert

· commented

· 1 Months ago

10x2^1 - 2^2 = 10x2 - 4 = 20-4 =16

16x2^2 - 2^4 = 16x4 - 16 = 64-16 =48

48x2^3 - 2^6 = 48x8 - 64 = 384-64 =320

320x2^4 - 2^8 = 320x16 - 256 = 5120-256 =4864

4864x2^5 - 2^10 = 4864x32 - 1024 = 155648-1024 =154624
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