Aptitude - Square Root and Cube Root - Discussion

Why taking square root??

Why taking square root?

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

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.

Sir, I did not understand why square root is taken and I am not satisfied with the answer.

I am also confused why square root is taken, would anyone please hlep me to make it understand.

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).

y taking square root??

@Vishal

From given condition,

No. of paise to be collected = no. of members.

because each member of that group giving one paise.

given amount= Rs.59.29.

coverting rupees to paise, we get 5929ps.

in any case when each one gives same amount as other, we get total

amount in this method i.e amount each one gave*no. of persons.........(A)

in above problem.

if there is one person, we get one paise.

if there are x persons, we get x paise

from the condition ...........(A).

x*x=5929.

then x=77.

Hope you understand.

Read the question carefully!

We will take "AS MANY PAISE AS THE NUMBER OF PEOPLE IN THE GROUP".
it means
if 1 member then he will give as many members in the group i.e 1 paisa

if 2 member then they will give as many members in the group i.e 2 paisa per person. Therefore the tottal amount is 4 paisa

Similarly if there are 77 people in the group then total amount collected is 1529 i.e. 77*77.