Others Maths Puzzle Numerical Ability Percentage

An article costs Rs 50 presently. The rate of inflation is 300%. What will be cost of this article after two years?

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Answer is 800.
price after 1st year : 50+(300/100*50)=200
price after 2nd year : 200+(300/100*200)800
10 years agoHelpfull: Yes(5) No(0)

I think ans is 800...
Price after 1yr = 50+(50+50+50) = 200.
Price after 2yr = 200+(200+200+200) = 800.
10 years agoHelpfull: Yes(4) No(0)
I think ans ll be 200

price after 2 years = p(1-r/100)^n
=50(1-300/100)^2 = 50*4 = 200
10 years agoHelpfull: Yes(0) No(4)

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