Aptitude - Square Root and Cube Root - Discussion

Discussion Forum : Square Root and Cube Root - General Questions (Q.No. 5)
5.

If 35 + 125 = 17.88, then what will be the value of 80 + 65 ?

13.41
20.46
21.66
22.35
Answer: Option
Explanation:

35 + 125 = 17.88

35 + 25 x 5 = 17.88

35 + 55 = 17.88

85 = 17.88

5 = 2.235

80 + 65 = 16 x 5 + 65

   = 45 + 65

   = 105 = (10 x 2.235) = 22.35

Discussion:
25 comments Page 2 of 3.

Mahi said:   9 years ago
Anyone please explain R5. I was more confused in that.

Uma mahesh said:   9 years ago
Could you please explain this problem clearly?

Gargi sarma said:   9 years ago
I don't understand this sum clearly. Can anyone help me to understand this?

Taj said:   9 years ago
How to calculates R5 in short cut method?

Zee said:   1 decade ago
VERY SIMPLE R80+6R5=4R5+6R5=10R5=10*2.235=22.35

Abhijit said:   10 years ago
How to calculate value of R5 manually?

NANALAL said:   10 years ago
Sir How to solve these questions?

R5456*R2120/R460.

Mozzima said:   1 decade ago
How you can eliminate 8 in 8r5?

Vikas said:   1 decade ago
Can anyone explain me the third step of explanation?

Khushb said:   1 decade ago
How is 17.88 turn into 2.235 what 8 did here?


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