Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 208 · 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.🧩 Enough evidence or not? “A dog barked at me once, so all dogs are mean.” (a) not enough evidence (b) enough evidence
2. 2.🧩 The film starts at 4 PM and lasts 2 hours. When does it end? (a) 7 PM (b) 4 PM (c) not enough info (d) 6 PM
3. 3.🧩 The film starts at 4 PM. It is a long film. When does it end? (a) 7 PM (b) 5 PM (c) not enough info (d) 6 PM
4. 4.True or false: “We checked all 40 mangoes in the box; every one was ripe.” gives enough evidence. (a) False (b) True
5. 5.🧩 Rohan bought 4 pens for ₹220 in all. Each pen cost the same. What did one pen cost? (a) ₹220 (b) ₹60 (c) not enough info (d) ₹55
6. 6.🧩 Nisha is 12 years old. Aarav is older than Nisha. How old is Aarav? (a) 17 (b) not enough info (c) 14 (d) 13
7. 7.True or false: “We tried the new route for 10 days, and it was faster every day.” gives enough evidence. (a) True (b) False
8. 8.True or false: “We measured the plant every day for a month; it grew 9 cm.” does not give enough evidence. (a) False (b) True
9. 9.🧩 Saanvi bought 4 pens for ₹200 in all. Each pen cost the same. What did one pen cost? (a) ₹50 (b) not enough info (c) ₹55 (d) ₹200
10. 10.🐕 One dog barked at you. What is the fair conclusion? (a) all dogs are mean (b) never see dogs (c) dogs hate you (d) that one dog barked
11. 11.True or false: “It rained on my birthday once, so it always rains on birthdays.” gives enough evidence. (a) True (b) False
12. 12.🧩 The film starts at 2 PM and lasts 1 hour. When does it end? (a) 3 PM (b) not enough info (c) 4 PM (d) 2 PM
13. 13.🧩 The film starts at 2 PM and lasts 2 hours. When does it end? (a) 2 PM (b) 4 PM (c) 5 PM (d) not enough info
14. 14.🧩 Aarav is 9 years old. Diya is older than Aarav. How old is Diya? (a) 11 (b) not enough info (c) 14 (d) 10
15. 15.🧩 A box of laddoos has 8 in each row. How many laddoos are in the box? (a) 16 (b) not enough info (c) 8 (d) 80
16. 16.🥭 You taste one mango from a box of 50, and it is sweet. Can you be sure all 50 are sweet? (a) no mango is sweet (b) yes, it is certain (c) no, check more (d) yes, mangoes match
17. 17.🔬 Why do scientists repeat an experiment? (a) for fun only (b) to change answers (c) to be sure of results (d) to waste time
18. 18.🧩 Enough evidence or not? “One student said the canteen food was cold, so it is always cold.” (a) enough evidence (b) not enough evidence
19. 19.🧩 Enough evidence or not? “We tried the new route for 10 days, and it was faster every day.” (a) enough evidence (b) not enough evidence
20. 20.🧩 Enough evidence or not? “We measured the plant every day for a month; it grew 9 cm.” (a) enough evidence (b) not enough evidence
21. 21.🧩 Tara is 8 years old. Aarav is 2 years older than Tara. How old is Aarav? (a) 11 (b) 10 (c) not enough info (d) 2
22. 22.🧩 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
23. 23.🧩 Diya bought 3 mangoes for ₹75 in all. Each mango cost the same. What did one mango cost? (a) not enough info (b) ₹30 (c) ₹75 (d) ₹25
24. 24.🧩 Diya bought 4 pens for ₹80 in all. Each pen cost the same. What did one pen cost? (a) not enough info (b) ₹20 (c) ₹25 (d) ₹80
25. 25.🧩 Before solving a word problem, first check… (a) the page number (b) your handwriting (c) the colour of ink (d) what facts are given
26. 26.🧩 Enough evidence or not? “We asked all 30 classmates; 25 chose the zoo trip.” (a) enough evidence (b) not enough evidence
27. 27.🧩 The film starts at 4 PM and lasts 1 hour. When does it end? (a) 4 PM (b) 5 PM (c) not enough info (d) 6 PM
28. 28.🧩 Enough evidence or not? “We checked all 40 mangoes in the box; every one was ripe.” (a) enough evidence (b) not enough evidence
29. 29.🧩 Rohan bought 4 kites for ₹40 in all. Each kite cost the same. What did one kite cost? (a) ₹10 (b) ₹15 (c) not enough info (d) ₹40
30. 30.True or false: “We measured the plant every day for a month; it grew 9 cm.” gives enough evidence. (a) True (b) False
31. 31.📊 Which gives the best evidence about the class’s favourite game? (a) asking your pet (b) asking the whole class (c) asking one friend (d) guessing
32. 32.📝 What does “evidence” mean? (a) a loud opinion (b) a guess (c) facts that support it (d) a rumour
33. 33.True or false: “We tested 20 seeds, and 18 of them sprouted.” does not give enough evidence. (a) False (b) True
34. 34.🧩 Enough evidence or not? “It rained on my birthday once, so it always rains on birthdays.” (a) enough evidence (b) not enough evidence
35. 35.🧩 Meera bought 6 mangoes and a cap for ₹430 in all. Each mango cost the same. What did one mango cost? (a) ₹71 (b) ₹424 (c) not enough info (d) ₹430
36. 36.🧩 Diya is 7 years old. Meera is 3 years older than Diya. How old is Meera? (a) 11 (b) not enough info (c) 10 (d) 3
37. 37.True or false: “It rained on my birthday once, so it always rains on birthdays.” does not give enough evidence. (a) False (b) True
38. 38.🧩 Ishaan is 8 years old. Ananya is 4 years older than Ishaan. How old is Ananya? (a) 4 (b) not enough info (c) 12 (d) 13
39. 39.🧩 A box of mangoes has 4 in each row. How many mangoes are in the box? (a) 8 (b) 4 (c) 40 (d) not enough info
40. 40.🧩 A box has 6 rows of apples, with 4 in each row. How many apples are in the box? (a) 10 (b) 28 (c) 24 (d) not enough info

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