Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 512 · 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.🐕 One dog barked at you. What is the fair conclusion? (a) dogs hate you (b) all dogs are mean (c) never see dogs (d) that one dog barked
2. 2.True or false: “We asked all 30 classmates; 25 chose the zoo trip.” does not give enough evidence. (a) True (b) False
3. 3.🧩 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
4. 4.🧩 Ishaan bought 5 notebooks and a lunch box for ₹155 in all. Each notebook cost the same. What did one notebook cost? (a) ₹150 (b) not enough info (c) ₹155 (d) ₹31
5. 5.🧩 Aarav bought 2 pens for ₹60 in all. Each pen cost the same. What did one pen cost? (a) not enough info (b) ₹60 (c) ₹30 (d) ₹35
6. 6.🧩 Enough evidence or not? “One mango in the box was sour, so all the mangoes are sour.” (a) not enough evidence (b) enough evidence
7. 7.🥭 You taste one mango from a box of 50, and it is sweet. Can you be sure all 50 are sweet? (a) yes, it is certain (b) no, check more (c) yes, mangoes match (d) no mango is sweet
8. 8.📝 What does “evidence” mean? (a) a guess (b) a rumour (c) a loud opinion (d) facts that support it
9. 9.🧩 Diya is 11 years old. Ishaan is 2 years older than Diya. How old is Ishaan? (a) not enough info (b) 2 (c) 13 (d) 14
10. 10.🔬 Why do scientists repeat an experiment? (a) for fun only (b) to be sure of results (c) to change answers (d) to waste time
11. 11.🧩 Enough evidence or not? “One student said the canteen food was cold, so it is always cold.” (a) not enough evidence (b) enough evidence
12. 12.🧩 Enough evidence or not? “We tested 20 seeds, and 18 of them sprouted.” (a) not enough evidence (b) enough evidence
13. 13.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
14. 14.True or false: “We checked all 40 mangoes in the box; every one was ripe.” gives enough evidence. (a) True (b) False
15. 15.🧩 Enough evidence or not? “We checked all 40 mangoes in the box; every one was ripe.” (a) not enough evidence (b) enough evidence
16. 16.True or false: “A dog barked at me once, so all dogs are mean.” gives enough evidence. (a) False (b) True
17. 17.🧩 Tara bought 4 balls for ₹120 in all. Each ball cost the same. What did one ball cost? (a) ₹35 (b) ₹120 (c) not enough info (d) ₹30
18. 18.🧩 Tara is 7 years old. Nisha is older than Tara. How old is Nisha? (a) 12 (b) 9 (c) 8 (d) not enough info
19. 19.🧩 Before solving a word problem, first check… (a) the colour of ink (b) your handwriting (c) what facts are given (d) the page number
20. 20.🧩 Enough evidence or not? “We asked all 30 classmates; 25 chose the zoo trip.” (a) not enough evidence (b) enough evidence
21. 21.🧩 The film starts at 2 PM. It is a long film. When does it end? (a) 3 PM (b) not enough info (c) 4 PM (d) 5 PM
22. 22.🧩 Diya bought 2 balls for ₹70 in all. Each ball cost the same. What did one ball cost? (a) not enough info (b) ₹70 (c) ₹35 (d) ₹40
23. 23.True or false: “We tried the new route for 10 days, and it was faster every day.” does not give enough evidence. (a) False (b) True
24. 24.🧩 The film starts at 5 PM. It is a long film. When does it end? (a) 7 PM (b) 8 PM (c) 6 PM (d) not enough info
25. 25.🧩 Meera bought 6 pens for ₹60 in all. Each pen cost the same. What did one pen cost? (a) ₹10 (b) ₹60 (c) ₹15 (d) not enough info
26. 26.🧩 A box has 3 rows of oranges, with 5 in each row. How many oranges are in the box? (a) 8 (b) 15 (c) 20 (d) not enough info
27. 27.🧩 Saanvi is 8 years old. Tara is older than Saanvi. How old is Tara? (a) 10 (b) 13 (c) 9 (d) not enough info
28. 28.🧩 Arjun is 10 years old. Ananya is 3 years older than Arjun. How old is Ananya? (a) not enough info (b) 13 (c) 3 (d) 14
29. 29.🧩 Enough evidence or not? “We measured the plant every day for a month; it grew 9 cm.” (a) enough evidence (b) not enough evidence
30. 30.🧩 Diya is 8 years old. Tara is older than Diya. How old is Tara? (a) 9 (b) not enough info (c) 10 (d) 13
31. 31.🧩 A box has 6 rows of apples, with 9 in each row. How many apples are in the box? (a) not enough info (b) 15 (c) 54 (d) 63
32. 32.🧩 A box has 3 rows of laddoos, with 4 in each row. How many laddoos are in the box? (a) not enough info (b) 12 (c) 16 (d) 7
33. 33.🧩 Ishaan bought 6 notebooks for ₹360 in all. Each notebook cost the same. What did one notebook cost? (a) ₹60 (b) not enough info (c) ₹65 (d) ₹360
34. 34.🧩 The film starts at 3 PM. It is a long film. When does it end? (a) 6 PM (b) 5 PM (c) 4 PM (d) not enough info
35. 35.📊 Which gives the best evidence about the class’s favourite game? (a) guessing (b) asking your pet (c) asking one friend (d) asking the whole class
36. 36.🧩 Diya is 7 years old. Tara is older than Diya. How old is Tara? (a) 12 (b) 9 (c) not enough info (d) 8
37. 37.🧩 A box has 4 rows of mangoes, with 9 in each row. How many mangoes are in the box? (a) 45 (b) 13 (c) not enough info (d) 36
38. 38.🧩 The film starts at 2 PM and lasts 1 hour. When does it end? (a) not enough info (b) 4 PM (c) 2 PM (d) 3 PM
39. 39.🧩 Enough evidence or not? “It rained on my birthday once, so it always rains on birthdays.” (a) not enough evidence (b) enough evidence
40. 40.🧩 A box has 8 rows of mangoes, with 4 in each row. How many mangoes are in the box? (a) 12 (b) 32 (c) not enough info (d) 36

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