In a row of cadets, Sheila is fifteenth from the left and Leila is fifteenth from the right. When the two cadets interchange their places, Leila becomes sixteenth from the right, How many cadets are there in the row?

In a row of cadets, Sheila is fifteenth from the left and Leila is fifteenth from the right. When the two cadets interchange their places, Leila becomes sixteenth from the right, How many cadets are there in the row? Correct Answer 30

Sheila's position = 15th from the left 

Leila's position = 15th from the right 

[ alt="F1 PoojaS Madhuri 16.02.2022 D1" src="//storage.googleapis.com/tb-img/production/22/02/F1_PoojaS_Madhuri_16.02.2022_D1.png" style="width: 280px; height: 105px;">

After interchange,

Leila's position = 16th from the right

[ alt="F1 PoojaS Madhuri 16.02.2022 D2" src="//storage.googleapis.com/tb-img/production/22/02/F1_PoojaS_Madhuri_16.02.2022_D2.png" style="width: 280px; height: 62px;">

Number of cadets in the row = Sheila's position before interchange + Leila's position after interchange - 1

Number of cadets in the row = 15 + 16 -1

Number of cadets in the row = 30

Hence, Option (3) is correct.

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