Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 876 · 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.📊 Which gives the best evidence about the class’s favourite game? (a) guessing (b) asking one friend (c) asking your pet (d) asking the whole class
2. 2.🧩 Enough evidence or not? “It rained on my birthday once, so it always rains on birthdays.” (a) enough evidence (b) not enough evidence
3. 3.🧩 The film starts at 2 PM. It is a long film. When does it end? (a) 3 PM (b) 5 PM (c) 4 PM (d) not enough info
4. 4.🐕 One dog barked at you. What is the fair conclusion? (a) all dogs are mean (b) that one dog barked (c) dogs hate you (d) never see dogs
5. 5.True or false: “We asked all 30 classmates; 25 chose the zoo trip.” does not give enough evidence. (a) True (b) False
6. 6.True or false: “We measured the plant every day for a month; it grew 9 cm.” does not give enough evidence. (a) True (b) False
7. 7.🧩 Nisha bought 4 pens for ₹200 in all. Each pen cost the same. What did one pen cost? (a) not enough info (b) ₹200 (c) ₹55 (d) ₹50
8. 8.🧩 A box of eggs has 8 in each row. How many eggs are in the box? (a) 16 (b) 80 (c) 8 (d) not enough info
9. 9.🧩 The film starts at 3 PM. It is a long film. When does it end? (a) 5 PM (b) 6 PM (c) 4 PM (d) not enough info
10. 10.🧩 Enough evidence or not? “We asked all 30 classmates; 25 chose the zoo trip.” (a) not enough evidence (b) enough evidence
11. 11.🧩 The film starts at 4 PM and lasts 1 hour. When does it end? (a) not enough info (b) 5 PM (c) 4 PM (d) 6 PM
12. 12.📝 What does “evidence” mean? (a) a loud opinion (b) a guess (c) facts that support it (d) a rumour
13. 13.🧩 The film starts at 4 PM. It is a long film. When does it end? (a) 7 PM (b) not enough info (c) 5 PM (d) 6 PM
14. 14.🧩 Rohan is 8 years old. Arjun is 4 years older than Rohan. How old is Arjun? (a) 12 (b) not enough info (c) 4 (d) 13
15. 15.🧩 Diya bought 2 mangoes for ₹60 in all. Each mango cost the same. What did one mango cost? (a) ₹30 (b) ₹60 (c) not enough info (d) ₹35
16. 16.🧩 Enough evidence or not? “We measured the plant every day for a month; it grew 9 cm.” (a) not enough evidence (b) enough evidence
17. 17.True or false: “A dog barked at me once, so all dogs are mean.” gives enough evidence. (a) True (b) False
18. 18.🧩 The film starts at 2 PM and lasts 2 hours. When does it end? (a) not enough info (b) 2 PM (c) 4 PM (d) 5 PM
19. 19.🧩 Kabir bought 3 pens for ₹30 in all. Each pen cost the same. What did one pen cost? (a) not enough info (b) ₹15 (c) ₹30 (d) ₹10
20. 20.🧩 Arjun bought 4 notebooks and a cap for ₹240 in all. Each notebook cost the same. What did one notebook cost? (a) ₹236 (b) ₹60 (c) not enough info (d) ₹240
21. 21.🧩 Aarav is 12 years old. Vihaan is 6 years older than Aarav. How old is Vihaan? (a) not enough info (b) 6 (c) 18 (d) 19
22. 22.🧩 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
23. 23.True or false: “A dog barked at me once, so all dogs are mean.” does not give enough evidence. (a) True (b) False
24. 24.True or false: “One student said the canteen food was cold, so it is always cold.” gives enough evidence. (a) False (b) True
25. 25.True or false: “We checked all 40 mangoes in the box; every one was ripe.” gives enough evidence. (a) False (b) True
26. 26.🧩 Ananya bought 2 markers and a water bottle for ₹70 in all. Each marker cost the same. What did one marker cost? (a) ₹35 (b) ₹68 (c) not enough info (d) ₹70
27. 27.🧩 Kabir is 12 years old. Tara is 4 years older than Kabir. How old is Tara? (a) not enough info (b) 4 (c) 17 (d) 16
28. 28.True or false: “We tested 20 seeds, and 18 of them sprouted.” does not give enough evidence. (a) False (b) True
29. 29.🧩 The film starts at 6 PM. It is a long film. When does it end? (a) 9 PM (b) 8 PM (c) not enough info (d) 7 PM
30. 30.True or false: “We asked all 30 classmates; 25 chose the zoo trip.” gives enough evidence. (a) True (b) False
31. 31.True or false: “One mango in the box was sour, so all the mangoes are sour.” gives enough evidence. (a) True (b) False
32. 32.True or false: “We checked all 40 mangoes in the box; every one was ripe.” does not give enough evidence. (a) True (b) False
33. 33.🧩 The film starts at 3 PM and lasts 3 hours. When does it end? (a) 7 PM (b) not enough info (c) 3 PM (d) 6 PM
34. 34.🧩 Enough evidence or not? “One student said the canteen food was cold, so it is always cold.” (a) enough evidence (b) not enough evidence
35. 35.🧩 Enough evidence or not? “We checked all 40 mangoes in the box; every one was ripe.” (a) not enough evidence (b) enough evidence
36. 36.🧩 Enough evidence or not? “We tested 20 seeds, and 18 of them sprouted.” (a) enough evidence (b) not enough evidence
37. 37.🧩 A box has 7 rows of mangoes, with 5 in each row. How many mangoes are in the box? (a) 40 (b) not enough info (c) 35 (d) 12
38. 38.🧩 The film starts at 5 PM and lasts 1 hour. When does it end? (a) 5 PM (b) not enough info (c) 7 PM (d) 6 PM
39. 39.🧩 A box has 4 rows of apples, with 5 in each row. How many apples are in the box? (a) not enough info (b) 25 (c) 20 (d) 9
40. 40.🧩 Enough evidence or not? “A dog barked at me once, so all dogs are mean.” (a) not enough evidence (b) enough evidence

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