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Eldest-Youngest - Absolute-Beginner Level: core concept mastery Eldest-Youngest ABSOLUTE BEGINNER

This skill primer 🌟 worksheet focuses on Eldest-Youngest - a key topic in Age Based Puzzles. You'll solve 20 absolute-beginner-level problems (Worksheet 1 of 10). The primary focus is on core concept mastery. Master eldest-youngest problems, eldest-youngest reasoning questions, and eldest-youngest practice through systematic practice.

📝 Worksheet 1 of 10 • 20 questions • ⏱️ Estimated time: 20 minutes • 🎯 Absolute Beginner level

What you'll learn in this worksheet:
Your progress through Eldest-Youngest
Worksheet 1 of 10 (0% complete)

Question 1

In a family of four: Josephine, Cooper, Daniel, Silas. The youngest is 9 and the eldest is 18. The other two members are 14 and 15. What is the average age of the family?
Sum of all ages = 9 + 14 + 15 + 18 = 56
Average = 56 ÷ 4 = 14

Question 2

In a family of four: Tushar, Gautam, Parvathy, Nira. The youngest is 10 and the eldest is 30. The other two members are 14 and 26. What is the average age of the family?
Sum of all ages = 10 + 14 + 26 + 30 = 80
Average = 80 ÷ 4 = 20

Question 3

In a family of four: Caleb, Aparna, Bhaskar, Rowan. The youngest is 7 and the eldest is 21. The other two members are 9 and 19. What is the average age of the family?
Sum of all ages = 7 + 9 + 19 + 21 = 56
Average = 56 ÷ 4 = 14

Question 4

In a family of four: Owen, Riley, Rajesh, Rajat. The youngest is 10 and the eldest is 20. The other two members are 16 and 18. What is the average age of the family?
Sum of all ages = 10 + 16 + 18 + 20 = 64
Average = 64 ÷ 4 = 16

Question 5

In a family of four: Vatsal, Aaliyah, Karthik, Nova. The youngest is 5 and the eldest is 15. The other two members are 11 and 13. What is the average age of the family?
Sum of all ages = 5 + 11 + 13 + 15 = 44
Average = 44 ÷ 4 = 11

Question 6

In a family of four: Mayank, Pravin, Daksh, Manmohan. The youngest is 7 and the eldest is 14. The other two members are 11 and 12. What is the average age of the family?
Sum of all ages = 7 + 11 + 12 + 14 = 44
Average = 44 ÷ 4 = 11

Question 7

In a family of four: Bentley, Vasudha, Shilpa, Vandana. The youngest is 8 and the eldest is 16. The other two members are 13 and 15. What is the average age of the family?
Sum of all ages = 8 + 13 + 15 + 16 = 52
Average = 52 ÷ 4 = 13

Question 8

In a family of four: Renu, Sushant, Sneha, Prashant. The youngest is 11 and the eldest is 22. The other two members are 14 and 17. What is the average age of the family?
Sum of all ages = 11 + 14 + 17 + 22 = 64
Average = 64 ÷ 4 = 16

Question 9

In a family of four: Penelope, Rajiv, Lokesh, Grace. The youngest is 10 and the eldest is 20. The other two members are 16 and 18. What is the average age of the family?
Sum of all ages = 10 + 16 + 18 + 20 = 64
Average = 64 ÷ 4 = 16

Question 10

In a family of four: Hudson, Layla, Namrata, Vivek. The youngest is 7 and the eldest is 21. The other two members are 9 and 15. What is the average age of the family?
Sum of all ages = 7 + 9 + 15 + 21 = 52
Average = 52 ÷ 4 = 13

Question 11

In a family of four: Manpreet, Lucy, Kamal, Kailash. The youngest is 11 and the eldest is 33. The other two members are 22 and 26. What is the average age of the family?
Sum of all ages = 11 + 22 + 26 + 33 = 92
Average = 92 ÷ 4 = 23

Question 12

In a family of four: Mohit, Stefan, Sonal, Natalie. The youngest is 6 and the eldest is 18. The other two members are 15 and 17. What is the average age of the family?
Sum of all ages = 6 + 15 + 17 + 18 = 56
Average = 56 ÷ 4 = 14

Question 13

In a family of four: Xavier, Kamini, Ethan, Theo. The youngest is 7 and the eldest is 21. The other two members are 13 and 15. What is the average age of the family?
Sum of all ages = 7 + 13 + 15 + 21 = 56
Average = 56 ÷ 4 = 14

Question 14

In a family of four: Manmohan, Ria, Vineet, Amara. The youngest is 8 and the eldest is 24. The other two members are 13 and 15. What is the average age of the family?
Sum of all ages = 8 + 13 + 15 + 24 = 60
Average = 60 ÷ 4 = 15

Question 15

In a family of four: Lata, Dhruv, Mahak, Silas. The youngest is 12 and the eldest is 24. The other two members are 21 and 23. What is the average age of the family?
Sum of all ages = 12 + 21 + 23 + 24 = 80
Average = 80 ÷ 4 = 20

Question 16

In a family of four: Suman, Swati, Vikram, Stefan. The youngest is 11 and the eldest is 22. The other two members are 18 and 21. What is the average age of the family?
Sum of all ages = 11 + 18 + 21 + 22 = 72
Average = 72 ÷ 4 = 18

Question 17

In a family of four: Nitin, Ellie, Kalpana, George. The youngest is 6 and the eldest is 18. The other two members are 9 and 15. What is the average age of the family?
Sum of all ages = 6 + 9 + 15 + 18 = 48
Average = 48 ÷ 4 = 12

Question 18

In a family of four: Benjamin, Mitali, Pratibha, Samantha. The youngest is 9 and the eldest is 27. The other two members are 13 and 23. What is the average age of the family?
Sum of all ages = 9 + 13 + 23 + 27 = 72
Average = 72 ÷ 4 = 18

Question 19

In a family of four: Elias, Anna, Gabriel, Renu. The youngest is 10 and the eldest is 20. The other two members are 12 and 14. What is the average age of the family?
Sum of all ages = 10 + 12 + 14 + 20 = 56
Average = 56 ÷ 4 = 14

Question 20

In a family of four: Vidhi, Jordan, Elizabeth, Vani. The youngest is 8 and the eldest is 24. The other two members are 13 and 19. What is the average age of the family?
Sum of all ages = 8 + 13 + 19 + 24 = 64
Average = 64 ÷ 4 = 16
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