Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 752 · 40 questions

Thinking tip (Enough facts, then decide): Not enough evidence: “One mango was sour, so all are sour.” Enough: “We checked all 40 mangoes; every one was ripe.” Before you answer, check every fact you need is given. 7 rows with 9 in each → 7 × 9 = 63. “A box has 9 in each row” with no number of rows → not enough info. Missing facts hide in words like “and a bag”, “older” (by how much?) and “a long film” (how long?).

1. 1.🧩 The film starts at 5 PM. It is a long film. When does it end? (a) 6 PM (b) not enough info (c) 8 PM (d) 7 PM
2. 2.🧩 A box of apples has 4 in each row. How many apples are in the box? (a) not enough info (b) 4 (c) 40 (d) 8
3. 3.🥭 You taste one mango from a box of 50, and it is sweet. Can you be sure all 50 are sweet? (a) yes, mangoes match (b) yes, it is certain (c) no mango is sweet (d) no, check more
4. 4.📊 Which gives the best evidence about the class’s favourite game? (a) asking one friend (b) asking your pet (c) guessing (d) asking the whole class
5. 5.True or false: “We checked all 40 mangoes in the box; every one was ripe.” gives enough evidence. (a) False (b) True
6. 6.🧩 A box of apples has 8 in each row. How many apples are in the box? (a) 8 (b) 80 (c) not enough info (d) 16
7. 7.🧩 Nisha bought 6 markers and a lunch box for ₹260 in all. Each marker cost the same. What did one marker cost? (a) ₹254 (b) not enough info (c) ₹260 (d) ₹43
8. 8.True or false: “My friend didn’t like the book, so the book is bad for everyone.” does not give enough evidence. (a) False (b) True
9. 9.🧩 A box of guavas has 9 in each row. How many guavas are in the box? (a) 18 (b) not enough info (c) 90 (d) 9
10. 10.🧩 Enough evidence or not? “My friend didn’t like the book, so the book is bad for everyone.” (a) not enough evidence (b) enough evidence
11. 11.🧩 Enough evidence or not? “A dog barked at me once, so all dogs are mean.” (a) not enough evidence (b) enough evidence
12. 12.🧩 The film starts at 3 PM and lasts 1 hour. When does it end? (a) 3 PM (b) 4 PM (c) not enough info (d) 5 PM
13. 13.🧩 Enough evidence or not? “One student said the canteen food was cold, so it is always cold.” (a) not enough evidence (b) enough evidence
14. 14.🧩 A box of mangoes has 6 in each row. How many mangoes are in the box? (a) 60 (b) 12 (c) 6 (d) not enough info
15. 15.🧩 Enough evidence or not? “We tested 20 seeds, and 18 of them sprouted.” (a) enough evidence (b) not enough evidence
16. 16.📝 What does “evidence” mean? (a) a loud opinion (b) a guess (c) facts that support it (d) a rumour
17. 17.True or false: “We tested 20 seeds, and 18 of them sprouted.” does not give enough evidence. (a) False (b) True
18. 18.🧩 Ishaan bought 3 markers for ₹135 in all. Each marker cost the same. What did one marker cost? (a) ₹45 (b) ₹135 (c) ₹50 (d) not enough info
19. 19.🧩 The film starts at 2 PM. It is a long film. When does it end? (a) 5 PM (b) 4 PM (c) not enough info (d) 3 PM
20. 20.True or false: “One student said the canteen food was cold, so it is always cold.” gives enough evidence. (a) True (b) False
21. 21.🧩 Ananya is 11 years old. Aarav is 4 years older than Ananya. How old is Aarav? (a) 4 (b) 16 (c) 15 (d) not enough info
22. 22.🧩 A box of oranges has 6 in each row. How many oranges are in the box? (a) 6 (b) 12 (c) not enough info (d) 60
23. 23.🧩 The film starts at 3 PM. It is a long film. When does it end? (a) 4 PM (b) 5 PM (c) not enough info (d) 6 PM
24. 24.🧩 Enough evidence or not? “We asked all 30 classmates; 25 chose the zoo trip.” (a) not enough evidence (b) enough evidence
25. 25.True or false: “We asked all 30 classmates; 25 chose the zoo trip.” does not give enough evidence. (a) True (b) False
26. 26.🧩 A box has 4 rows of eggs, with 4 in each row. How many eggs are in the box? (a) 16 (b) 8 (c) not enough info (d) 20
27. 27.🧩 The film starts at 6 PM. It is a long film. When does it end? (a) 7 PM (b) 9 PM (c) not enough info (d) 8 PM
28. 28.🧩 Enough evidence or not? “We checked all 40 mangoes in the box; every one was ripe.” (a) not enough evidence (b) enough evidence
29. 29.🧩 Tara bought 4 pens for ₹80 in all. Each pen cost the same. What did one pen cost? (a) not enough info (b) ₹80 (c) ₹20 (d) ₹25
30. 30.🧩 Diya bought 6 mangoes for ₹120 in all. Each mango cost the same. What did one mango cost? (a) ₹25 (b) ₹120 (c) ₹20 (d) not enough info
31. 31.True or false: “One mango in the box was sour, so all the mangoes are sour.” gives enough evidence. (a) False (b) True
32. 32.🧩 A box has 8 rows of oranges, with 8 in each row. How many oranges are in the box? (a) 16 (b) not enough info (c) 64 (d) 72
33. 33.🧩 A box has 5 rows of mangoes, with 6 in each row. How many mangoes are in the box? (a) 30 (b) 36 (c) 11 (d) not enough info
34. 34.🧩 A box has 5 rows of guavas, with 9 in each row. How many guavas are in the box? (a) 14 (b) not enough info (c) 45 (d) 54
35. 35.🧩 Tara bought 4 notebooks and a bag for ₹250 in all. Each notebook cost the same. What did one notebook cost? (a) ₹246 (b) ₹62 (c) not enough info (d) ₹250
36. 36.True or false: “A dog barked at me once, so all dogs are mean.” gives enough evidence. (a) False (b) True
37. 37.True or false: “One student said the canteen food was cold, so it is always cold.” does not give enough evidence. (a) False (b) True
38. 38.🧩 Meera is 6 years old. Tara is 2 years older than Meera. How old is Tara? (a) 9 (b) not enough info (c) 2 (d) 8
39. 39.🧩 The film starts at 2 PM and lasts 1 hour. When does it end? (a) 4 PM (b) 2 PM (c) 3 PM (d) not enough info
40. 40.True or false: “A dog barked at me once, so all dogs are mean.” does not give enough evidence. (a) True (b) False

Free critical thinking lessons, practice and worksheets at talentjr.in/critical-thinking-for-kids