Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 463 · 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.True or false: “We checked all 40 mangoes in the box; every one was ripe.” gives enough evidence. (a) False (b) True
2. 2.🧩 Saanvi bought 2 pens for ₹60 in all. Each pen cost the same. What did one pen cost? (a) not enough info (b) ₹35 (c) ₹60 (d) ₹30
3. 3.🧩 A box of eggs has 4 in each row. How many eggs are in the box? (a) 4 (b) 8 (c) not enough info (d) 40
4. 4.True or false: “One mango in the box was sour, so all the mangoes are sour.” does not give enough evidence. (a) True (b) False
5. 5.🧩 The film starts at 5 PM. It is a long film. When does it end? (a) 8 PM (b) 6 PM (c) 7 PM (d) not enough info
6. 6.True or false: “A dog barked at me once, so all dogs are mean.” does not give enough evidence. (a) True (b) False
7. 7.🧩 Rohan is 6 years old. Tara is 7 years older than Rohan. How old is Tara? (a) 13 (b) 7 (c) not enough info (d) 14
8. 8.📊 Which gives the best evidence about the class’s favourite game? (a) asking your pet (b) guessing (c) asking the whole class (d) asking one friend
9. 9.🧩 The film starts at 4 PM and lasts 3 hours. When does it end? (a) 7 PM (b) 8 PM (c) not enough info (d) 4 PM
10. 10.🧩 A box of apples has 4 in each row. How many apples are in the box? (a) not enough info (b) 4 (c) 8 (d) 40
11. 11.🧩 Aarav is 9 years old. Ishaan is 4 years older than Aarav. How old is Ishaan? (a) 14 (b) 13 (c) not enough info (d) 4
12. 12.True or false: “A dog barked at me once, so all dogs are mean.” gives enough evidence. (a) True (b) False
13. 13.🧩 Nisha bought 3 balls for ₹135 in all. Each ball cost the same. What did one ball cost? (a) ₹135 (b) ₹50 (c) ₹45 (d) not enough info
14. 14.🧩 Ishaan is 10 years old. Ananya is 2 years older than Ishaan. How old is Ananya? (a) 12 (b) 13 (c) 2 (d) not enough info
15. 15.🧩 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
16. 16.🧩 Enough evidence or not? “We checked all 40 mangoes in the box; every one was ripe.” (a) not enough evidence (b) enough evidence
17. 17.🧩 A box has 8 rows of mangoes, with 8 in each row. How many mangoes are in the box? (a) 72 (b) 64 (c) 16 (d) not enough info
18. 18.🧩 Tara bought 6 notebooks for ₹180 in all. Each notebook cost the same. What did one notebook cost? (a) ₹30 (b) ₹35 (c) ₹180 (d) not enough info
19. 19.🧩 Enough evidence or not? “We tested 20 seeds, and 18 of them sprouted.” (a) not enough evidence (b) enough evidence
20. 20.🧩 Ishaan is 6 years old. Arjun is 7 years older than Ishaan. How old is Arjun? (a) not enough info (b) 7 (c) 14 (d) 13
21. 21.🧩 Diya bought 3 kites for ₹45 in all. Each kite cost the same. What did one kite cost? (a) not enough info (b) ₹45 (c) ₹20 (d) ₹15
22. 22.🧩 Nisha bought 3 notebooks for ₹45 in all. Each notebook cost the same. What did one notebook cost? (a) ₹15 (b) not enough info (c) ₹45 (d) ₹20
23. 23.🧩 Enough evidence or not? “One mango in the box was sour, so all the mangoes are sour.” (a) not enough evidence (b) enough evidence
24. 24.🐕 One dog barked at you. What is the fair conclusion? (a) never see dogs (b) dogs hate you (c) all dogs are mean (d) that one dog barked
25. 25.🧩 Rohan is 10 years old. Saanvi is older than Rohan. How old is Saanvi? (a) 11 (b) 12 (c) not enough info (d) 15
26. 26.True or false: “We measured the plant every day for a month; it grew 9 cm.” gives enough evidence. (a) False (b) True
27. 27.True or false: “One student said the canteen food was cold, so it is always cold.” gives enough evidence. (a) True (b) False
28. 28.True or false: “We tried the new route for 10 days, and it was faster every day.” does not give enough evidence. (a) True (b) False
29. 29.True or false: “We tested 20 seeds, and 18 of them sprouted.” does not give enough evidence. (a) True (b) False
30. 30.🧩 Tara bought 6 pens for ₹150 in all. Each pen cost the same. What did one pen cost? (a) not enough info (b) ₹30 (c) ₹25 (d) ₹150
31. 31.True or false: “It rained on my birthday once, so it always rains on birthdays.” gives enough evidence. (a) False (b) True
32. 32.🧩 A box has 8 rows of oranges, with 6 in each row. How many oranges are in the box? (a) 54 (b) not enough info (c) 14 (d) 48
33. 33.🧩 Enough evidence or not? “We asked all 30 classmates; 25 chose the zoo trip.” (a) not enough evidence (b) enough evidence
34. 34.🧩 Enough evidence or not? “A dog barked at me once, so all dogs are mean.” (a) not enough evidence (b) enough evidence
35. 35.🧩 Kabir bought 6 pens for ₹180 in all. Each pen cost the same. What did one pen cost? (a) not enough info (b) ₹180 (c) ₹30 (d) ₹35
36. 36.🧩 A box has 8 rows of mangoes, with 4 in each row. How many mangoes are in the box? (a) 12 (b) not enough info (c) 32 (d) 36
37. 37.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
38. 38.🧩 Before solving a word problem, first check… (a) your handwriting (b) the page number (c) what facts are given (d) the colour of ink
39. 39.🧩 Saanvi is 12 years old. Aarav is older than Saanvi. How old is Aarav? (a) not enough info (b) 17 (c) 14 (d) 13
40. 40.🧩 Enough evidence or not? “It rained on my birthday once, so it always rains on birthdays.” (a) not enough evidence (b) enough evidence

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