Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 495 · 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 3 PM. It is a long film. When does it end? (a) 5 PM (b) 6 PM (c) 4 PM (d) not enough info
2. 2.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
3. 3.True or false: “We checked all 40 mangoes in the box; every one was ripe.” does not give enough evidence. (a) True (b) False
4. 4.🧩 The film starts at 4 PM. It is a long film. When does it end? (a) 6 PM (b) 5 PM (c) 7 PM (d) not enough info
5. 5.True or false: “We tested 20 seeds, and 18 of them sprouted.” gives enough evidence. (a) False (b) True
6. 6.🧩 Enough evidence or not? “We checked all 40 mangoes in the box; every one was ripe.” (a) not enough evidence (b) enough evidence
7. 7.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
8. 8.🧩 The film starts at 6 PM and lasts 3 hours. When does it end? (a) 9 PM (b) not enough info (c) 6 PM (d) 10 PM
9. 9.🧩 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
10. 10.True or false: “We checked all 40 mangoes in the box; every one was ripe.” gives enough evidence. (a) True (b) False
11. 11.🧩 Enough evidence or not? “We asked all 30 classmates; 25 chose the zoo trip.” (a) enough evidence (b) not enough evidence
12. 12.🧩 Tara is 6 years old. Kabir is 2 years older than Tara. How old is Kabir? (a) 9 (b) 8 (c) not enough info (d) 2
13. 13.🧩 The film starts at 3 PM and lasts 3 hours. When does it end? (a) not enough info (b) 3 PM (c) 6 PM (d) 7 PM
14. 14.🧩 Aarav bought 6 balls for ₹150 in all. Each ball cost the same. What did one ball cost? (a) ₹150 (b) not enough info (c) ₹30 (d) ₹25
15. 15.🧩 A box has 6 rows of oranges, with 9 in each row. How many oranges are in the box? (a) 15 (b) 63 (c) 54 (d) not enough info
16. 16.🧩 Enough evidence or not? “One student said the canteen food was cold, so it is always cold.” (a) enough evidence (b) not enough evidence
17. 17.🧩 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
18. 18.True or false: “We tried the new route for 10 days, and it was faster every day.” gives enough evidence. (a) False (b) True
19. 19.True or false: “My friend didn’t like the book, so the book is bad for everyone.” gives enough evidence. (a) True (b) False
20. 20.📊 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
21. 21.True or false: “A dog barked at me once, so all dogs are mean.” does not give enough evidence. (a) False (b) True
22. 22.🧩 Vihaan is 7 years old. Ananya is 8 years older than Vihaan. How old is Ananya? (a) not enough info (b) 8 (c) 15 (d) 16
23. 23.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
24. 24.True or false: “One student said the canteen food was cold, so it is always cold.” gives enough evidence. (a) False (b) True
25. 25.🧩 Kabir bought 2 balls and a bag for ₹60 in all. Each ball cost the same. What did one ball cost? (a) ₹60 (b) ₹30 (c) ₹58 (d) not enough info
26. 26.🧩 Before solving a word problem, first check… (a) the colour of ink (b) your handwriting (c) the page number (d) what facts are given
27. 27.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
28. 28.🧩 Rohan is 8 years old. Ishaan is 2 years older than Rohan. How old is Ishaan? (a) 10 (b) not enough info (c) 2 (d) 11
29. 29.True or false: “One mango in the box was sour, so all the mangoes are sour.” gives enough evidence. (a) False (b) True
30. 30.🧩 The film starts at 3 PM and lasts 1 hour. When does it end? (a) 4 PM (b) not enough info (c) 3 PM (d) 5 PM
31. 31.🧩 Enough evidence or not? “We tested 20 seeds, and 18 of them sprouted.” (a) enough evidence (b) not enough evidence
32. 32.🧩 The film starts at 6 PM. It is a long film. When does it end? (a) 8 PM (b) 9 PM (c) not enough info (d) 7 PM
33. 33.True or false: “A dog barked at me once, so all dogs are mean.” gives enough evidence. (a) True (b) False
34. 34.🧩 A box of eggs has 4 in each row. How many eggs are in the box? (a) 8 (b) not enough info (c) 40 (d) 4
35. 35.🧩 Enough evidence or not? “One mango in the box was sour, so all the mangoes are sour.” (a) not enough evidence (b) enough evidence
36. 36.🧩 A box has 6 rows of guavas, with 8 in each row. How many guavas are in the box? (a) not enough info (b) 14 (c) 48 (d) 56
37. 37.🧩 A box has 8 rows of apples, with 6 in each row. How many apples are in the box? (a) 54 (b) 48 (c) 14 (d) not enough info
38. 38.🧩 Enough evidence or not? “A dog barked at me once, so all dogs are mean.” (a) enough evidence (b) not enough evidence
39. 39.🧩 Kabir is 11 years old. Rohan is older than Kabir. How old is Rohan? (a) not enough info (b) 16 (c) 12 (d) 13
40. 40.🧩 A box of laddoos has 4 in each row. How many laddoos are in the box? (a) 4 (b) not enough info (c) 8 (d) 40

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