Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 722 · 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? “We checked all 40 mangoes in the box; every one was ripe.” (a) not enough evidence (b) enough evidence
2. 2.🧩 Enough evidence or not? “A dog barked at me once, so all dogs are mean.” (a) not enough evidence (b) enough evidence
3. 3.🧩 A box has 3 rows of eggs, with 8 in each row. How many eggs are in the box? (a) 24 (b) 11 (c) 32 (d) not enough info
4. 4.True or false: “We tried the new route for 10 days, and it was faster every day.” gives enough evidence. (a) True (b) False
5. 5.🧩 Enough evidence or not? “One mango in the box was sour, so all the mangoes are sour.” (a) not enough evidence (b) enough evidence
6. 6.🧩 Enough evidence or not? “We asked all 30 classmates; 25 chose the zoo trip.” (a) enough evidence (b) not enough evidence
7. 7.🧩 Enough evidence or not? “It rained on my birthday once, so it always rains on birthdays.” (a) not enough evidence (b) enough evidence
8. 8.🧩 Kabir bought 4 mangoes for ₹200 in all. Each mango cost the same. What did one mango cost? (a) not enough info (b) ₹55 (c) ₹200 (d) ₹50
9. 9.🧩 The film starts at 3 PM and lasts 1 hour. When does it end? (a) 5 PM (b) 3 PM (c) not enough info (d) 4 PM
10. 10.True or false: “A dog barked at me once, so all dogs are mean.” does not give enough evidence. (a) True (b) False
11. 11.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
12. 12.🧩 The film starts at 5 PM and lasts 3 hours. When does it end? (a) 9 PM (b) 8 PM (c) not enough info (d) 5 PM
13. 13.🧩 Nisha bought 3 kites and a cap for ₹70 in all. Each kite cost the same. What did one kite cost? (a) ₹23 (b) not enough info (c) ₹67 (d) ₹70
14. 14.🧩 A box has 6 rows of eggs, with 8 in each row. How many eggs are in the box? (a) 56 (b) not enough info (c) 48 (d) 14
15. 15.🐕 One dog barked at you. What is the fair conclusion? (a) never see dogs (b) dogs hate you (c) that one dog barked (d) all dogs are mean
16. 16.🧩 Nisha bought 2 markers and a lunch box for ₹140 in all. Each marker cost the same. What did one marker cost? (a) ₹138 (b) not enough info (c) ₹70 (d) ₹140
17. 17.🧩 Diya bought 5 pens and a lunch box for ₹80 in all. Each pen cost the same. What did one pen cost? (a) ₹80 (b) ₹75 (c) ₹16 (d) not enough info
18. 18.🧩 The film starts at 4 PM. It is a long film. When does it end? (a) 7 PM (b) 5 PM (c) 6 PM (d) not enough info
19. 19.🧩 Aarav bought 3 mangoes for ₹60 in all. Each mango cost the same. What did one mango cost? (a) ₹20 (b) ₹60 (c) not enough info (d) ₹25
20. 20.🧩 Diya is 7 years old. Meera is 9 years older than Diya. How old is Meera? (a) 16 (b) not enough info (c) 17 (d) 9
21. 21.True or false: “We tested 20 seeds, and 18 of them sprouted.” does not give enough evidence. (a) True (b) False
22. 22.True or false: “We checked all 40 mangoes in the box; every one was ripe.” gives enough evidence. (a) False (b) True
23. 23.🧩 The film starts at 6 PM and lasts 1 hour. When does it end? (a) 8 PM (b) not enough info (c) 6 PM (d) 7 PM
24. 24.🧩 Aarav bought 3 markers for ₹150 in all. Each marker cost the same. What did one marker cost? (a) ₹50 (b) ₹55 (c) not enough info (d) ₹150
25. 25.🧩 A box has 4 rows of guavas, with 9 in each row. How many guavas are in the box? (a) 36 (b) 45 (c) not enough info (d) 13
26. 26.🧩 A box has 8 rows of guavas, with 9 in each row. How many guavas are in the box? (a) 72 (b) not enough info (c) 17 (d) 81
27. 27.🧩 Enough evidence or not? “One student said the canteen food was cold, so it is always cold.” (a) not enough evidence (b) enough evidence
28. 28.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
29. 29.True or false: “A dog barked at me once, so all dogs are mean.” gives enough evidence. (a) True (b) False
30. 30.🧩 Enough evidence or not? “My friend didn’t like the book, so the book is bad for everyone.” (a) not enough evidence (b) enough evidence
31. 31.🧩 The film starts at 4 PM and lasts 1 hour. When does it end? (a) 6 PM (b) 4 PM (c) not enough info (d) 5 PM
32. 32.🧩 Saanvi is 12 years old. Ananya is 6 years older than Saanvi. How old is Ananya? (a) 19 (b) not enough info (c) 6 (d) 18
33. 33.🧩 The film starts at 5 PM and lasts 2 hours. When does it end? (a) 8 PM (b) not enough info (c) 7 PM (d) 5 PM
34. 34.🧩 A box of apples has 5 in each row. How many apples are in the box? (a) 5 (b) not enough info (c) 50 (d) 10
35. 35.🧩 Rohan bought 5 pens for ₹150 in all. Each pen cost the same. What did one pen cost? (a) ₹35 (b) ₹30 (c) not enough info (d) ₹150
36. 36.🧩 Saanvi bought 3 notebooks for ₹105 in all. Each notebook cost the same. What did one notebook cost? (a) ₹35 (b) not enough info (c) ₹40 (d) ₹105
37. 37.🧩 A box has 6 rows of laddoos, with 5 in each row. How many laddoos are in the box? (a) not enough info (b) 35 (c) 11 (d) 30
38. 38.🧩 Enough evidence or not? “We measured the plant every day for a month; it grew 9 cm.” (a) not enough evidence (b) enough evidence
39. 39.🧩 A box of mangoes has 4 in each row. How many mangoes are in the box? (a) 8 (b) 40 (c) 4 (d) not enough info
40. 40.🧩 Aarav is 11 years old. Diya is 2 years older than Aarav. How old is Diya? (a) 14 (b) 2 (c) not enough info (d) 13

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