Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 39 · 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 4 PM. It is a long film. When does it end? (a) 5 PM (b) 6 PM (c) 7 PM (d) not enough info
2. 2.🐕 One dog barked at you. What is the fair conclusion? (a) dogs hate you (b) never see dogs (c) that one dog barked (d) all dogs are mean
3. 3.🧩 Diya bought 4 mangoes and a water bottle for ₹190 in all. Each mango cost the same. What did one mango cost? (a) ₹47 (b) ₹186 (c) ₹190 (d) not enough info
4. 4.True or false: “It rained on my birthday once, so it always rains on birthdays.” does not give enough evidence. (a) False (b) True
5. 5.🧩 The film starts at 5 PM. It is a long film. When does it end? (a) 8 PM (b) 6 PM (c) not enough info (d) 7 PM
6. 6.🧩 Before solving a word problem, first check… (a) the colour of ink (b) your handwriting (c) what facts are given (d) the page number
7. 7.True or false: “We checked all 40 mangoes in the box; every one was ripe.” does not give enough evidence. (a) False (b) True
8. 8.True or false: “We tested 20 seeds, and 18 of them sprouted.” gives enough evidence. (a) True (b) False
9. 9.🧩 Vihaan bought 2 mangoes and a water bottle for ₹120 in all. Each mango cost the same. What did one mango cost? (a) not enough info (b) ₹118 (c) ₹120 (d) ₹60
10. 10.🧩 Enough evidence or not? “My friend didn’t like the book, so the book is bad for everyone.” (a) enough evidence (b) not enough evidence
11. 11.🧩 A box has 8 rows of oranges, with 4 in each row. How many oranges are in the box? (a) 32 (b) 36 (c) 12 (d) not enough info
12. 12.📊 Which gives the best evidence about the class’s favourite game? (a) asking your pet (b) asking one friend (c) asking the whole class (d) guessing
13. 13.🧩 Enough evidence or not? “A dog barked at me once, so all dogs are mean.” (a) not enough evidence (b) enough evidence
14. 14.True or false: “We checked all 40 mangoes in the box; every one was ripe.” gives enough evidence. (a) False (b) True
15. 15.🧩 Enough evidence or not? “It rained on my birthday once, so it always rains on birthdays.” (a) not enough evidence (b) enough evidence
16. 16.🧩 Rohan bought 5 kites for ₹300 in all. Each kite cost the same. What did one kite cost? (a) ₹300 (b) ₹65 (c) not enough info (d) ₹60
17. 17.🧩 Arjun bought 2 notebooks and a water bottle for ₹170 in all. Each notebook cost the same. What did one notebook cost? (a) ₹170 (b) ₹168 (c) ₹85 (d) not enough info
18. 18.📝 What does “evidence” mean? (a) a loud opinion (b) a guess (c) facts that support it (d) a rumour
19. 19.🧩 Enough evidence or not? “We checked all 40 mangoes in the box; every one was ripe.” (a) enough evidence (b) not enough evidence
20. 20.🧩 A box has 8 rows of laddoos, with 8 in each row. How many laddoos are in the box? (a) not enough info (b) 64 (c) 16 (d) 72
21. 21.🧩 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
22. 22.🔬 Why do scientists repeat an experiment? (a) to change answers (b) to waste time (c) for fun only (d) to be sure of results
23. 23.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
24. 24.🧩 Rohan is 9 years old. Saanvi is 5 years older than Rohan. How old is Saanvi? (a) 5 (b) 14 (c) 15 (d) not enough info
25. 25.🧩 The film starts at 6 PM and lasts 2 hours. When does it end? (a) 8 PM (b) not enough info (c) 6 PM (d) 9 PM
26. 26.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
27. 27.True or false: “We tested 20 seeds, and 18 of them sprouted.” does not give enough evidence. (a) True (b) False
28. 28.🧩 Ishaan bought 4 pens and a lunch box for ₹240 in all. Each pen cost the same. What did one pen cost? (a) ₹60 (b) ₹236 (c) ₹240 (d) not enough info
29. 29.🧩 The film starts at 3 PM and lasts 3 hours. When does it end? (a) not enough info (b) 6 PM (c) 3 PM (d) 7 PM
30. 30.🧩 Nisha bought 5 notebooks and a water bottle for ₹115 in all. Each notebook cost the same. What did one notebook cost? (a) ₹115 (b) ₹23 (c) not enough info (d) ₹110
31. 31.🧩 Kabir is 12 years old. Rohan is 3 years older than Kabir. How old is Rohan? (a) 3 (b) 16 (c) 15 (d) not enough info
32. 32.🧩 A box of guavas has 6 in each row. How many guavas are in the box? (a) 6 (b) not enough info (c) 12 (d) 60
33. 33.🧩 The film starts at 3 PM. It is a long film. When does it end? (a) not enough info (b) 6 PM (c) 5 PM (d) 4 PM
34. 34.🧩 Enough evidence or not? “One mango in the box was sour, so all the mangoes are sour.” (a) enough evidence (b) not enough evidence
35. 35.🧩 A box of apples has 6 in each row. How many apples are in the box? (a) 60 (b) not enough info (c) 6 (d) 12
36. 36.🧩 Saanvi bought 6 mangoes for ₹330 in all. Each mango cost the same. What did one mango cost? (a) ₹330 (b) ₹55 (c) not enough info (d) ₹60
37. 37.🧩 Meera bought 4 kites for ₹140 in all. Each kite cost the same. What did one kite cost? (a) ₹40 (b) not enough info (c) ₹35 (d) ₹140
38. 38.🥭 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 mango is sweet (c) yes, mangoes match (d) no, check more
39. 39.🧩 Arjun bought 6 notebooks for ₹360 in all. Each notebook cost the same. What did one notebook cost? (a) ₹65 (b) not enough info (c) ₹60 (d) ₹360
40. 40.🧩 A box has 8 rows of eggs, with 4 in each row. How many eggs are in the box? (a) 32 (b) not enough info (c) 36 (d) 12

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