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When all the students in a school are made to stand in row of 68, 40 such rows are formed.If the students are made to stand in the row of 20, how many such rows can be formed ?
  • a)
    85
  • b)
    136
  • c)
    129
  • d)
    97
  • e)
    None of these
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
When all the students in a school are made to stand in row of 68, 40 s...
No of row = 68*40/20 = 136
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Most Upvoted Answer
When all the students in a school are made to stand in row of 68, 40 s...
Given:
Number of students in each row = 68
Number of rows = 40

To find:
Number of rows when the students are made to stand in the row of 20

Solution:
Let the total number of students be N

Number of students in each row = 68
Number of rows = 40

So, N = 68 x 40 = 2720

Number of rows when the students are made to stand in the row of 20

Let the number of rows be n

Number of students in each row = 20

So, N = 20 x n

n = N/20 = 2720/20 = 136

Therefore, the number of rows that can be formed when the students are made to stand in the row of 20 is 136.

Hence, the correct option is (b) 136.
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Community Answer
When all the students in a school are made to stand in row of 68, 40 s...
68*40=2720;
check options:-
85*20=1700
136*row of 20=2720
so option b is the write answer
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When all the students in a school are made to stand in row of 68, 40 such rows are formed.If the students are made to stand in the row of 20, how many such rows can be formed ?a)85b)136c)129d)97e)None of theseCorrect answer is option 'B'. Can you explain this answer?
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