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Munagala Janardhana Reddy

· started a discussion

· 1 Months ago

solution (Question: 372552.0 )

please give detailed solution sir/madam..

Question:

There are 50 boxes and 50 persons. Person 1 keeps 1 marble in every box. Person 2 keeps 2 marbles in every 2nd box and person 3 keeps 3 marbles in every third box. This process goes on till person 50 keeps 50 marbles in the 50th box. Find the total no. of marbles kept in the 50th box.

Options:
A)

43

B)

78

C)

50

D)

93

Solution:

Ans: (d) Total no. of marbles kept in 50th box

= sum of factors of 50

=  1 + 2 + 5 + 10 + 25 + 50 = 93

Hari singh

· commented

· 1 Months ago

Yet to be approved!

Akshay Kapoor

· commented

· 1 Months ago

Dear Student
The 1st person will keep the marble in 50th box
The 2nd person will also keep marble in 50th box
The 5th person will also keep the marble in 50th Box
The 10th person will also keep the marble in 50th box
25th person will also do the same
50th person will also perform the same
1+2+5+10+25+50=93
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Tushar Rawat

· commented

· 1 Months ago

the marbles will be kept in box number 50 only when 50 is a multiple of that person...suppose person 13 came to put marbles..he will keep 13 marbles in box number 13, 26 and 39.
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