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Swap with Unknown Total Beginner-Intermediate Worksheet: Focus on common variations practice Swap with Unknown Total BEGINNER INTERMEDIATE

Level up your Swap with Unknown Total skills! You're at Worksheet 4 of 10 (33% through this series). This step-up challenge worksheet features 20 beginner-intermediate-level problems with a focus on common variations practice. Topics covered: swap with unknown total for competitive exams, how to solve swap with unknown total, swap with unknown total tricks.

📝 Worksheet 4 of 10 • 20 questions • ⏱️ Estimated time: 20 minutes • 🎯 Beginner Intermediate level

What you'll learn in this worksheet:
Your progress through Swap with Unknown Total
Worksheet 4 of 10 (33% complete)

Question 1

In a row, A and B interchange positions. After interchange, A is 9th from left and B is 14th from left. If originally A was 4th from left, how many people are in the row?
Distance A moved = 5 positions. B moved same distance, so B's original position = 9. Total = B's original left position + (new_left_A - 1) = 19

Question 2

In a row, A and B interchange positions. After interchange, A is 14th from left and B is 17th from left. If originally A was 9th from left, how many people are in the row?
Distance A moved = 5 positions. B moved same distance, so B's original position = 12. Total = B's original left position + (new_left_A - 1) = 22

Question 3

In a row, A and B interchange positions. After interchange, A is 15th from left and B is 23th from left. If originally A was 7th from left, how many people are in the row?
Distance A moved = 8 positions. B moved same distance, so B's original position = 15. Total = B's original left position + (new_left_A - 1) = 31

Question 4

In a row, A and B interchange positions. After interchange, A is 14th from left and B is 23th from left. If originally A was 6th from left, how many people are in the row?
Distance A moved = 8 positions. B moved same distance, so B's original position = 15. Total = B's original left position + (new_left_A - 1) = 31

Question 5

In a row, A and B interchange positions. After interchange, A is 13th from left and B is 18th from left. If originally A was 6th from left, how many people are in the row?
Distance A moved = 7 positions. B moved same distance, so B's original position = 11. Total = B's original left position + (new_left_A - 1) = 25

Question 6

In a row, A and B interchange positions. After interchange, A is 8th from left and B is 13th from left. If originally A was 3th from left, how many people are in the row?
Distance A moved = 5 positions. B moved same distance, so B's original position = 8. Total = B's original left position + (new_left_A - 1) = 18

Question 7

In a row, A and B interchange positions. After interchange, A is 14th from left and B is 22th from left. If originally A was 9th from left, how many people are in the row?
Distance A moved = 5 positions. B moved same distance, so B's original position = 17. Total = B's original left position + (new_left_A - 1) = 27

Question 8

In a row, A and B interchange positions. After interchange, A is 11th from left and B is 15th from left. If originally A was 5th from left, how many people are in the row?
Distance A moved = 6 positions. B moved same distance, so B's original position = 9. Total = B's original left position + (new_left_A - 1) = 21

Question 9

In a row, A and B interchange positions. After interchange, A is 11th from left and B is 17th from left. If originally A was 3th from left, how many people are in the row?
Distance A moved = 8 positions. B moved same distance, so B's original position = 9. Total = B's original left position + (new_left_A - 1) = 25

Question 10

In a row, A and B interchange positions. After interchange, A is 15th from left and B is 21th from left. If originally A was 7th from left, how many people are in the row?
Distance A moved = 8 positions. B moved same distance, so B's original position = 13. Total = B's original left position + (new_left_A - 1) = 29

Question 11

In a row, A and B interchange positions. After interchange, A is 11th from left and B is 21th from left. If originally A was 3th from left, how many people are in the row?
Distance A moved = 8 positions. B moved same distance, so B's original position = 13. Total = B's original left position + (new_left_A - 1) = 29

Question 12

In a row, A and B interchange positions. After interchange, A is 15th from left and B is 23th from left. If originally A was 8th from left, how many people are in the row?
Distance A moved = 7 positions. B moved same distance, so B's original position = 16. Total = B's original left position + (new_left_A - 1) = 30

Question 13

In a row, A and B interchange positions. After interchange, A is 11th from left and B is 21th from left. If originally A was 6th from left, how many people are in the row?
Distance A moved = 5 positions. B moved same distance, so B's original position = 16. Total = B's original left position + (new_left_A - 1) = 26

Question 14

In a row, A and B interchange positions. After interchange, A is 14th from left and B is 22th from left. If originally A was 10th from left, how many people are in the row?
Distance A moved = 4 positions. B moved same distance, so B's original position = 18. Total = B's original left position + (new_left_A - 1) = 26

Question 15

In a row, A and B interchange positions. After interchange, A is 11th from left and B is 18th from left. If originally A was 3th from left, how many people are in the row?
Distance A moved = 8 positions. B moved same distance, so B's original position = 10. Total = B's original left position + (new_left_A - 1) = 26

Question 16

In a row, A and B interchange positions. After interchange, A is 8th from left and B is 17th from left. If originally A was 6th from left, how many people are in the row?
Distance A moved = 2 positions. B moved same distance, so B's original position = 15. Total = B's original left position + (new_left_A - 1) = 19

Question 17

In a row, A and B interchange positions. After interchange, A is 12th from left and B is 18th from left. If originally A was 7th from left, how many people are in the row?
Distance A moved = 5 positions. B moved same distance, so B's original position = 13. Total = B's original left position + (new_left_A - 1) = 23

Question 18

In a row, A and B interchange positions. After interchange, A is 10th from left and B is 15th from left. If originally A was 8th from left, how many people are in the row?
Distance A moved = 2 positions. B moved same distance, so B's original position = 13. Total = B's original left position + (new_left_A - 1) = 17

Question 19

In a row, A and B interchange positions. After interchange, A is 15th from left and B is 22th from left. If originally A was 6th from left, how many people are in the row?
Distance A moved = 9 positions. B moved same distance, so B's original position = 13. Total = B's original left position + (new_left_A - 1) = 31

Question 20

In a row, A and B interchange positions. After interchange, A is 15th from left and B is 25th from left. If originally A was 13th from left, how many people are in the row?
Distance A moved = 2 positions. B moved same distance, so B's original position = 23. Total = B's original left position + (new_left_A - 1) = 27
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