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Maths Puzzle
If 5 = 2.236, then the value of 5 - 10 + 125 is equal to:
2 5
A. 5.59 B. 7.826
C. 8.944 D. 10.062
Read Solution (Total 3)
-
- C. 8.944
If 5 = 2.236 means
-->10= 2.236*2 = 4.472 (i.e., 5*2 =10. So, 2.236*2)
-->125 =5^3
= 2.236^3
= 11.179
Therefore,
5 - 10 + 125 = (2.236) - (4.472) + 11.179
= -2.236+11.179
= 8.944
- 12 years agoHelpfull: Yes(1) No(0)
- ANS C 8.944
5- 10 + 125 = 2.236-(2*2.236)+ (2.236^3) = 8.944 - 12 years agoHelpfull: Yes(0) No(0)
- Ans. D. 10.062
5 = 2.236 means 5 = sqrt(5)
So 10 = sqrt(10) = 3.162
125 = sqrt(125) = 11.180
Therefore 5 - 10 + 125 = 2.236 - 3.162 + 11.180
= 10.254
Which is approximately near to Option D. 10.062
So Option D can be taken as answer to this puzzle. - 12 years agoHelpfull: Yes(0) No(1)
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