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Aptitude - Square Root and Cube Root - Discussion

Discussion Forum : Square Root and Cube Root - General Questions (Q.No. 8)
Square Root and Cube Root
8.
A group of students decided to collect as many paise from each member of group as is the number of members. If the total collection amounts to Rs. 59.29, the number of the member is the group is:
57
67
77
87
Answer: Option
Explanation:

Money collected = (59.29 x 100) paise = 5929 paise.

Number of members = 5929 = 77.

Discussion:
35 comments Page 1 of 4.
Hilal said:   1 decade ago
y taking square root??
Sandeep said:   1 decade ago
No. of paise to be collected = no. of members = x.

Hence total amount = x * x = (x power 2) = 5929.

Nearest perfect square is 80*80 = 6400

Therefore ans is 77 paise.
Pavan said:   1 decade ago
Why taking square root??
Ami said:   1 decade ago
Why taking square root?
Pardhu said:   1 decade ago
59.29 = 5929/100
5929/100*100 = 5929

Here we are calculating in the number of groups so we have do the root

Sqr.Root(5929) = 77
Rishi Shaunak Mehta said:   1 decade ago
Square root is taken because the amount of paise each member will give is equal to the number of members in the group so the total amount will be square of the members in the group.
Bhaskar said:   1 decade ago
Sir, I did not understand why square root is taken and I am not satisfied with the answer.
Suleman said:   1 decade ago
I am also confused why square root is taken, would anyone please hlep me to make it understand.
Ved said:   1 decade ago
Dear Suleman, number of paise and number of student both are equal. In this case we always use square root to find them. This concept also based on 9*9 grid (suduko).
Vishal said:   1 decade ago
Kindy explain if some one find appropriate sol of why square root is taken.
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