Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 190 · 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) all dogs are mean (b) that one dog barked (c) dogs hate you (d) never see dogs
2. 2.🧩 Enough evidence or not? “One mango in the box was sour, so all the mangoes are sour.” (a) not enough evidence (b) enough evidence
3. 3.🧩 Saanvi bought 3 mangoes and a bag for ₹90 in all. Each mango cost the same. What did one mango cost? (a) ₹87 (b) ₹90 (c) ₹30 (d) not enough info
4. 4.🧩 Enough evidence or not? “We measured the plant every day for a month; it grew 9 cm.” (a) enough evidence (b) not enough evidence
5. 5.🧩 Enough evidence or not? “We asked all 30 classmates; 25 chose the zoo trip.” (a) not enough evidence (b) enough evidence
6. 6.🧩 Ananya bought 2 mangoes for ₹110 in all. Each mango cost the same. What did one mango cost? (a) ₹60 (b) ₹55 (c) not enough info (d) ₹110
7. 7.🧩 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
8. 8.🧩 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
9. 9.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
10. 10.🧩 The film starts at 3 PM and lasts 1 hour. When does it end? (a) 5 PM (b) not enough info (c) 4 PM (d) 3 PM
11. 11.🧩 Enough evidence or not? “One student said the canteen food was cold, so it is always cold.” (a) enough evidence (b) not enough evidence
12. 12.🥭 You taste one mango from a box of 50, and it is sweet. Can you be sure all 50 are sweet? (a) no, check more (b) yes, mangoes match (c) yes, it is certain (d) no mango is sweet
13. 13.True or false: “A dog barked at me once, so all dogs are mean.” does not give enough evidence. (a) True (b) False
14. 14.🧩 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
15. 15.🧩 Vihaan is 10 years old. Tara is older than Vihaan. How old is Tara? (a) 15 (b) not enough info (c) 11 (d) 12
16. 16.🧩 Before solving a word problem, first check… (a) the page number (b) what facts are given (c) your handwriting (d) the colour of ink
17. 17.True or false: “One student said the canteen food was cold, so it is always cold.” does not give enough evidence. (a) True (b) False
18. 18.📊 Which gives the best evidence about the class’s favourite game? (a) asking your pet (b) asking the whole class (c) guessing (d) asking one friend
19. 19.🧩 A box of eggs has 8 in each row. How many eggs are in the box? (a) 16 (b) not enough info (c) 8 (d) 80
20. 20.🧩 Rohan bought 3 kites and a cap for ₹215 in all. Each kite cost the same. What did one kite cost? (a) ₹212 (b) ₹71 (c) not enough info (d) ₹215
21. 21.True or false: “We tried the new route for 10 days, and it was faster every day.” gives enough evidence. (a) False (b) True
22. 22.🧩 Enough evidence or not? “We tested 20 seeds, and 18 of them sprouted.” (a) not enough evidence (b) enough evidence
23. 23.🧩 Enough evidence or not? “We checked all 40 mangoes in the box; every one was ripe.” (a) not enough evidence (b) enough evidence
24. 24.🧩 The film starts at 2 PM. It is a long film. When does it end? (a) not enough info (b) 5 PM (c) 3 PM (d) 4 PM
25. 25.True or false: “My friend didn’t like the book, so the book is bad for everyone.” does not give enough evidence. (a) True (b) False
26. 26.🧩 Meera is 6 years old. Ananya is 2 years older than Meera. How old is Ananya? (a) not enough info (b) 8 (c) 9 (d) 2
27. 27.🧩 The film starts at 5 PM and lasts 1 hour. When does it end? (a) 7 PM (b) not enough info (c) 5 PM (d) 6 PM
28. 28.🧩 A box has 5 rows of eggs, with 4 in each row. How many eggs are in the box? (a) 24 (b) 9 (c) not enough info (d) 20
29. 29.True or false: “We asked all 30 classmates; 25 chose the zoo trip.” does not give enough evidence. (a) False (b) True
30. 30.True or false: “We checked all 40 mangoes in the box; every one was ripe.” does not give enough evidence. (a) True (b) False
31. 31.📝 What does “evidence” mean? (a) facts that support it (b) a rumour (c) a guess (d) a loud opinion
32. 32.🧩 A box has 8 rows of apples, with 6 in each row. How many apples are in the box? (a) 54 (b) 14 (c) 48 (d) not enough info
33. 33.🧩 The film starts at 4 PM and lasts 2 hours. When does it end? (a) not enough info (b) 4 PM (c) 7 PM (d) 6 PM
34. 34.🧩 The film starts at 4 PM and lasts 3 hours. When does it end? (a) 8 PM (b) 7 PM (c) not enough info (d) 4 PM
35. 35.🧩 A box of guavas has 5 in each row. How many guavas are in the box? (a) 5 (b) 10 (c) 50 (d) not enough info
36. 36.🧩 Nisha bought 6 notebooks and a lunch box for ₹150 in all. Each notebook cost the same. What did one notebook cost? (a) ₹25 (b) ₹144 (c) not enough info (d) ₹150
37. 37.🧩 A box of mangoes has 9 in each row. How many mangoes are in the box? (a) 90 (b) not enough info (c) 9 (d) 18
38. 38.True or false: “A dog barked at me once, so all dogs are mean.” gives enough evidence. (a) False (b) True
39. 39.🧩 A box of laddoos has 8 in each row. How many laddoos are in the box? (a) not enough info (b) 16 (c) 80 (d) 8
40. 40.🧩 Tara is 12 years old. Ishaan is older than Tara. How old is Ishaan? (a) 17 (b) not enough info (c) 14 (d) 13

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