In a row, Manu is at 14th position from the left and Sam is at the 9th position from the right. If they interchange their positions, then Sam becomes 12th from the right. Find the total number of persons present in the row.
- A30
- B28
- C20
- D25
Solution & Step-by-step Explanation
Initially:
Manu's position = 14th from the left
Sam's position = 9th from the right
After interchanging positions:
Sam takes Manu's original spot, which means Sam's new position is 14th from the left.
According to the question, Sam's new position is also 12th from the right.
The total number of persons in a row can be calculated using the formula:
Total=Position from Left+Position from Right−1
Substitute the values:
Total=14+12−1=26−1=25
Thus, there are 25 persons in the row.
Manu's position = 14th from the left
Sam's position = 9th from the right
After interchanging positions:
Sam takes Manu's original spot, which means Sam's new position is 14th from the left.
According to the question, Sam's new position is also 12th from the right.
The total number of persons in a row can be calculated using the formula:
Total=Position from Left+Position from Right−1
Substitute the values:
Total=14+12−1=26−1=25
Thus, there are 25 persons in the row.