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Swap with Unknown Total - Intermediate Level: tricky scenarios handling Swap with Unknown Total INTERMEDIATE

This expert challenge 📈 worksheet focuses on Swap with Unknown Total - a key topic in Number Ranking. You'll solve 20 intermediate-level problems (Worksheet 5 of 10). The primary focus is on tricky scenarios handling. Master how to solve swap with unknown total, swap with unknown total tricks, and swap with unknown total shortcut methods through systematic practice.

📝 Worksheet 5 of 10 • 20 questions • ⏱️ Estimated time: 20 minutes • 🎯 Intermediate level

What you'll learn in this worksheet:
Your progress through Swap with Unknown Total
Worksheet 5 of 10 (44% complete)

Question 1

In a row, A and B interchange positions. After interchange, A is 10th from left and B is 13th from left. If originally A was 4th from left, how many people are in the row?
Distance A moved = 6 positions. B moved same distance, so B's original position = 7. 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 13th from left and B is 16th from left. If originally A was 5th from left, how many people are in the row?
Distance A moved = 8 positions. B moved same distance, so B's original position = 8. Total = B's original left position + (new_left_A - 1) = 24

Question 3

In a row, A and B interchange positions. After interchange, A is 14th from left and B is 20th from left. If originally A was 7th from left, how many people are in the row?
Distance A moved = 7 positions. B moved same distance, so B's original position = 13. Total = B's original left position + (new_left_A - 1) = 27

Question 4

In a row, A and B interchange positions. After interchange, A is 15th from left and B is 19th from left. If originally A was 3th from left, how many people are in the row?
Distance A moved = 12 positions. B moved same distance, so B's original position = 7. 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 10th from left and B is 19th from left. If originally A was 4th from left, how many people are in the row?
Distance A moved = 6 positions. B moved same distance, so B's original position = 13. 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 13th 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 = 4 positions. B moved same distance, so B's original position = 13. Total = B's original left position + (new_left_A - 1) = 21

Question 7

In a row, A and B interchange positions. After interchange, A is 11th from left and B is 19th from left. If originally A was 8th from left, how many people are in the row?
Distance A moved = 3 positions. B moved same distance, so B's original position = 16. Total = B's original left position + (new_left_A - 1) = 22

Question 8

In a row, A and B interchange positions. After interchange, A is 9th from left and B is 13th from left. If originally A was 7th from left, how many people are in the row?
Distance A moved = 2 positions. B moved same distance, so B's original position = 11. Total = B's original left position + (new_left_A - 1) = 15

Question 9

In a row, A and B interchange positions. After interchange, A is 10th from left and B is 14th from left. If originally A was 5th 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 10

In a row, A and B interchange positions. After interchange, A is 10th 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 = 7 positions. B moved same distance, so B's original position = 11. Total = B's original left position + (new_left_A - 1) = 25

Question 11

In a row, A and B interchange positions. After interchange, A is 13th from left and B is 22th from left. If originally A was 8th 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 12

In a row, A and B interchange positions. After interchange, A is 12th from left and B is 16th 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 = 11. Total = B's original left position + (new_left_A - 1) = 21

Question 13

In a row, A and B interchange positions. After interchange, A is 8th from left and B is 12th 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 = 10. Total = B's original left position + (new_left_A - 1) = 14

Question 14

In a row, A and B interchange positions. After interchange, A is 13th from left and B is 21th from left. If originally A was 11th from left, how many people are in the row?
Distance A moved = 2 positions. B moved same distance, so B's original position = 19. Total = B's original left position + (new_left_A - 1) = 23

Question 15

In a row, A and B interchange positions. After interchange, A is 10th from left and B is 17th 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 = 15. Total = B's original left position + (new_left_A - 1) = 19

Question 16

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 4th 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 17

In a row, A and B interchange positions. After interchange, A is 12th 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 = 3 positions. B moved same distance, so B's original position = 14. Total = B's original left position + (new_left_A - 1) = 20

Question 18

In a row, A and B interchange positions. After interchange, A is 8th 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 = 2 positions. B moved same distance, so B's original position = 16. Total = B's original left position + (new_left_A - 1) = 20

Question 19

In a row, A and B interchange positions. After interchange, A is 11th from left and B is 16th 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 = 8. Total = B's original left position + (new_left_A - 1) = 24

Question 20

In a row, A and B interchange positions. After interchange, A is 8th from left and B is 11th from left. If originally A was 4th from left, how many people are in the row?
Distance A moved = 4 positions. B moved same distance, so B's original position = 7. Total = B's original left position + (new_left_A - 1) = 15
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