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Question
In a row of boys, Ramesh if sixth from the left and Rahim is eleventh from the right.If they interchange their positions, Ramesh becomes tenth from the left. How many boys are there in the row?
In a row of boys, Ramesh if sixth from the left and Rahim is eleventh from the right.If they interchange their positions, Ramesh becomes tenth from the left. How many boys are there in the row?
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Solution
The correct option is C 20
Total number of students before Rahim =6+x
Given, Ramesh's new position is 10th from the left.
There are 9 students before Ramesh after interchange.
Before Ramesh was in the 6th position. Hence ,
6+x=9
∴x=3
⇒Total number of students are
5 +3+10=2=20 ( Here 2 is added because we have to count Ramesh and Rahim)
Total number of students before Rahim =6+x
Given, Ramesh's new position is 10th from the left.
There are 9 students before Ramesh after interchange.
Before Ramesh was in the 6th position. Hence ,
6+x=9
∴x=3
⇒Total number of students are
5 +3+10=2=20 ( Here 2 is added because we have to count Ramesh and Rahim)
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