ReasoningAbility.com

Average Replacement - Absolute-Beginner Level: core concept mastery Average Replacement ABSOLUTE BEGINNER

This skill primer 🌟 worksheet focuses on Average Replacement - 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 average replacement problems, average replacement reasoning questions, and average replacement 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 Average Replacement
Worksheet 1 of 10 (0% complete)

Question 1

The average age of 5 people is 39. If Kamal (age 47) leaves and a new person joins, the average becomes 40. Find the age of the new person.
Initial total = 39 × 5 = 195
After Kamal leaves: 195 - 47 = 148
New total = 40 × 5 = 200
New person's age = 200 - (148) = 52

Question 2

The average age of 5 people is 40. If Jude (age 24) leaves and a new person joins, the average becomes 40. Find the age of the new person.
Initial total = 40 × 5 = 200
After Jude leaves: 200 - 24 = 176
New total = 40 × 5 = 200
New person's age = 200 - (176) = 24

Question 3

The average age of 6 people is 35. If Shlok (age 32) leaves and a new person joins, the average becomes 39. Find the age of the new person.
Initial total = 35 × 6 = 210
After Shlok leaves: 210 - 32 = 178
New total = 39 × 6 = 234
New person's age = 234 - (178) = 56

Question 4

The average age of 4 people is 38. If Sneha (age 39) leaves and a new person joins, the average becomes 40. Find the age of the new person.
Initial total = 38 × 4 = 152
After Sneha leaves: 152 - 39 = 113
New total = 40 × 4 = 160
New person's age = 160 - (113) = 47

Question 5

The average age of 4 people is 38. If Dhara (age 42) leaves and a new person joins, the average becomes 42. Find the age of the new person.
Initial total = 38 × 4 = 152
After Dhara leaves: 152 - 42 = 110
New total = 42 × 4 = 168
New person's age = 168 - (110) = 58

Question 6

The average age of 6 people is 35. If Manjari (age 26) leaves and a new person joins, the average becomes 38. Find the age of the new person.
Initial total = 35 × 6 = 210
After Manjari leaves: 210 - 26 = 184
New total = 38 × 6 = 228
New person's age = 228 - (184) = 44

Question 7

The average age of 6 people is 33. If Simran (age 25) leaves and a new person joins, the average becomes 32. Find the age of the new person.
Initial total = 33 × 6 = 198
After Simran leaves: 198 - 25 = 173
New total = 32 × 6 = 192
New person's age = 192 - (173) = 19

Question 8

The average age of 4 people is 30. If Ishaan (age 48) leaves and a new person joins, the average becomes 32. Find the age of the new person.
Initial total = 30 × 4 = 120
After Ishaan leaves: 120 - 48 = 72
New total = 32 × 4 = 128
New person's age = 128 - (72) = 56

Question 9

The average age of 5 people is 29. If Riddhima (age 33) leaves and a new person joins, the average becomes 34. Find the age of the new person.
Initial total = 29 × 5 = 145
After Riddhima leaves: 145 - 33 = 112
New total = 34 × 5 = 170
New person's age = 170 - (112) = 58

Question 10

The average age of 6 people is 28. If Kamini (age 29) leaves and a new person joins, the average becomes 29. Find the age of the new person.
Initial total = 28 × 6 = 168
After Kamini leaves: 168 - 29 = 139
New total = 29 × 6 = 174
New person's age = 174 - (139) = 35

Question 11

The average age of 6 people is 25. If Prerna (age 45) leaves and a new person joins, the average becomes 26. Find the age of the new person.
Initial total = 25 × 6 = 150
After Prerna leaves: 150 - 45 = 105
New total = 26 × 6 = 156
New person's age = 156 - (105) = 51

Question 12

The average age of 6 people is 27. If Mansi (age 50) leaves and a new person joins, the average becomes 24. Find the age of the new person.
Initial total = 27 × 6 = 162
After Mansi leaves: 162 - 50 = 112
New total = 24 × 6 = 144
New person's age = 144 - (112) = 32

Question 13

The average age of 5 people is 33. If Chetan (age 29) leaves and a new person joins, the average becomes 36. Find the age of the new person.
Initial total = 33 × 5 = 165
After Chetan leaves: 165 - 29 = 136
New total = 36 × 5 = 180
New person's age = 180 - (136) = 44

Question 14

The average age of 6 people is 32. If Urvi (age 34) leaves and a new person joins, the average becomes 33. Find the age of the new person.
Initial total = 32 × 6 = 192
After Urvi leaves: 192 - 34 = 158
New total = 33 × 6 = 198
New person's age = 198 - (158) = 40

Question 15

The average age of 4 people is 28. If Sienna (age 36) leaves and a new person joins, the average becomes 28. Find the age of the new person.
Initial total = 28 × 4 = 112
After Sienna leaves: 112 - 36 = 76
New total = 28 × 4 = 112
New person's age = 112 - (76) = 36

Question 16

The average age of 6 people is 34. If Shubh (age 24) leaves and a new person joins, the average becomes 34. Find the age of the new person.
Initial total = 34 × 6 = 204
After Shubh leaves: 204 - 24 = 180
New total = 34 × 6 = 204
New person's age = 204 - (180) = 24

Question 17

The average age of 6 people is 26. If Arthur (age 49) leaves and a new person joins, the average becomes 25. Find the age of the new person.
Initial total = 26 × 6 = 156
After Arthur leaves: 156 - 49 = 107
New total = 25 × 6 = 150
New person's age = 150 - (107) = 43

Question 18

The average age of 4 people is 28. If Babita (age 33) leaves and a new person joins, the average becomes 32. Find the age of the new person.
Initial total = 28 × 4 = 112
After Babita leaves: 112 - 33 = 79
New total = 32 × 4 = 128
New person's age = 128 - (79) = 49

Question 19

The average age of 4 people is 38. If Arthur (age 37) leaves and a new person joins, the average becomes 39. Find the age of the new person.
Initial total = 38 × 4 = 152
After Arthur leaves: 152 - 37 = 115
New total = 39 × 4 = 156
New person's age = 156 - (115) = 41

Question 20

The average age of 6 people is 33. If Josephine (age 47) leaves and a new person joins, the average becomes 36. Find the age of the new person.
Initial total = 33 × 6 = 198
After Josephine leaves: 198 - 47 = 151
New total = 36 × 6 = 216
New person's age = 216 - (151) = 65
Next Worksheet