Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 258 · 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.🧩 A box of guavas has 8 in each row. How many guavas are in the box? (a) 16 (b) 8 (c) 80 (d) not enough info
2. 2.🧩 Diya is 9 years old. Meera is older than Diya. How old is Meera? (a) not enough info (b) 14 (c) 11 (d) 10
3. 3.🧩 The film starts at 5 PM. It is a long film. When does it end? (a) not enough info (b) 7 PM (c) 8 PM (d) 6 PM
4. 4.🐕 One dog barked at you. What is the fair conclusion? (a) that one dog barked (b) all dogs are mean (c) never see dogs (d) dogs hate you
5. 5.🧩 The film starts at 3 PM. It is a long film. When does it end? (a) 4 PM (b) 6 PM (c) 5 PM (d) not enough info
6. 6.📊 Which gives the best evidence about the class’s favourite game? (a) asking one friend (b) guessing (c) asking your pet (d) asking the whole class
7. 7.🧩 Meera is 12 years old. Ananya is older than Meera. How old is Ananya? (a) 17 (b) 14 (c) 13 (d) not enough info
8. 8.True or false: “We asked all 30 classmates; 25 chose the zoo trip.” does not give enough evidence. (a) True (b) False
9. 9.🧩 Before solving a word problem, first check… (a) your handwriting (b) what facts are given (c) the colour of ink (d) the page number
10. 10.True or false: “One mango in the box was sour, so all the mangoes are sour.” does not give enough evidence. (a) True (b) False
11. 11.🧩 Enough evidence or not? “We checked all 40 mangoes in the box; every one was ripe.” (a) not enough evidence (b) enough evidence
12. 12.True or false: “We checked all 40 mangoes in the box; every one was ripe.” gives enough evidence. (a) False (b) True
13. 13.True or false: “A dog barked at me once, so all dogs are mean.” does not give enough evidence. (a) False (b) True
14. 14.🧩 Ananya bought 6 kites for ₹240 in all. Each kite cost the same. What did one kite cost? (a) ₹45 (b) not enough info (c) ₹240 (d) ₹40
15. 15.🧩 Enough evidence or not? “We tried the new route for 10 days, and it was faster every day.” (a) not enough evidence (b) enough evidence
16. 16.🧩 Nisha bought 4 mangoes and a bag for ₹260 in all. Each mango cost the same. What did one mango cost? (a) ₹260 (b) ₹65 (c) ₹256 (d) not enough info
17. 17.🧩 Enough evidence or not? “We measured the plant every day for a month; it grew 9 cm.” (a) enough evidence (b) not enough evidence
18. 18.True or false: “We tested 20 seeds, and 18 of them sprouted.” does not give enough evidence. (a) True (b) False
19. 19.🧩 A box of laddoos has 4 in each row. How many laddoos are in the box? (a) 8 (b) 40 (c) 4 (d) not enough info
20. 20.🧩 The film starts at 3 PM and lasts 1 hour. When does it end? (a) 5 PM (b) 4 PM (c) not enough info (d) 3 PM
21. 21.True or false: “A dog barked at me once, so all dogs are mean.” gives enough evidence. (a) True (b) False
22. 22.🧩 Diya bought 2 pens for ₹60 in all. Each pen cost the same. What did one pen cost? (a) ₹30 (b) not enough info (c) ₹60 (d) ₹35
23. 23.🧩 A box has 7 rows of laddoos, with 4 in each row. How many laddoos are in the box? (a) not enough info (b) 11 (c) 32 (d) 28
24. 24.🧩 Ananya bought 6 markers for ₹120 in all. Each marker cost the same. What did one marker cost? (a) not enough info (b) ₹25 (c) ₹120 (d) ₹20
25. 25.🧩 Enough evidence or not? “A dog barked at me once, so all dogs are mean.” (a) not enough evidence (b) enough evidence
26. 26.🧩 Ishaan bought 5 notebooks and a lunch box for ₹105 in all. Each notebook cost the same. What did one notebook cost? (a) ₹100 (b) ₹21 (c) not enough info (d) ₹105
27. 27.True or false: “It rained on my birthday once, so it always rains on birthdays.” does not give enough evidence. (a) True (b) False
28. 28.🧩 Vihaan is 6 years old. Arjun is older than Vihaan. How old is Arjun? (a) 7 (b) 11 (c) not enough info (d) 8
29. 29.🧩 Enough evidence or not? “We asked all 30 classmates; 25 chose the zoo trip.” (a) enough evidence (b) not enough evidence
30. 30.🧩 Enough evidence or not? “One mango in the box was sour, so all the mangoes are sour.” (a) enough evidence (b) not enough evidence
31. 31.🧩 The film starts at 2 PM and lasts 3 hours. When does it end? (a) 2 PM (b) 5 PM (c) not enough info (d) 6 PM
32. 32.🧩 Tara is 12 years old. Saanvi is older than Tara. How old is Saanvi? (a) 14 (b) 13 (c) not enough info (d) 17
33. 33.🧩 A box of oranges has 6 in each row. How many oranges are in the box? (a) 12 (b) 6 (c) 60 (d) not enough info
34. 34.📝 What does “evidence” mean? (a) facts that support it (b) a loud opinion (c) a rumour (d) a guess
35. 35.🧩 Saanvi bought 4 notebooks for ₹160 in all. Each notebook cost the same. What did one notebook cost? (a) ₹160 (b) not enough info (c) ₹40 (d) ₹45
36. 36.True or false: “We asked all 30 classmates; 25 chose the zoo trip.” gives enough evidence. (a) True (b) False
37. 37.🧩 Tara bought 6 notebooks for ₹270 in all. Each notebook cost the same. What did one notebook cost? (a) ₹270 (b) ₹45 (c) not enough info (d) ₹50
38. 38.🧩 Ananya is 7 years old. Vihaan is 3 years older than Ananya. How old is Vihaan? (a) 11 (b) 3 (c) not enough info (d) 10
39. 39.🧩 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
40. 40.🔬 Why do scientists repeat an experiment? (a) for fun only (b) to waste time (c) to be sure of results (d) to change answers

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