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Maths Puzzle
Numerical Ability
Number System
(1-1/(3^2))(1-1/(4^2))(1-1/(5^2)).............(1-1/(2015^2))=x/2015. what is the value of x?
Read Solution (Total 3)
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- 1344 is correct answer.
- 9 years agoHelpfull: Yes(0) No(1)
- Its simple a^2-b^2=(a+b)(a-b)
(1-1/3)(1+1/3)......(1-1/4)(1+1/4).....(1+1/2015)(1-1/2015)=x/2015
2/3*2016/2015=x/2015
x=2/3*2016=2*672=1344
Ans 1344 - 9 years agoHelpfull: Yes(0) No(0)
- 1344 is ans
- 9 years agoHelpfull: Yes(0) No(0)
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