Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 522 · 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.🧩 A box has 3 rows of apples, with 4 in each row. How many apples are in the box? (a) not enough info (b) 7 (c) 16 (d) 12
2. 2.🧩 The film starts at 3 PM. It is a long film. When does it end? (a) not enough info (b) 6 PM (c) 4 PM (d) 5 PM
3. 3.True or false: “We asked all 30 classmates; 25 chose the zoo trip.” gives enough evidence. (a) True (b) False
4. 4.🧩 Tara is 6 years old. Nisha is older than Tara. How old is Nisha? (a) 11 (b) 8 (c) 7 (d) not enough info
5. 5.True or false: “One student said the canteen food was cold, so it is always cold.” gives enough evidence. (a) False (b) True
6. 6.🧩 Before solving a word problem, first check… (a) the colour of ink (b) what facts are given (c) the page number (d) your handwriting
7. 7.🐕 One dog barked at you. What is the fair conclusion? (a) all dogs are mean (b) that one dog barked (c) never see dogs (d) dogs hate you
8. 8.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
9. 9.📊 Which gives the best evidence about the class’s favourite game? (a) asking the whole class (b) asking your pet (c) asking one friend (d) guessing
10. 10.🧩 Ananya bought 5 balls for ₹200 in all. Each ball cost the same. What did one ball cost? (a) ₹40 (b) not enough info (c) ₹45 (d) ₹200
11. 11.True or false: “We checked all 40 mangoes in the box; every one was ripe.” does not give enough evidence. (a) True (b) False
12. 12.True or false: “A dog barked at me once, so all dogs are mean.” does not give enough evidence. (a) False (b) True
13. 13.🥭 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, it is certain (c) yes, mangoes match (d) no mango is sweet
14. 14.🔬 Why do scientists repeat an experiment? (a) to be sure of results (b) to waste time (c) for fun only (d) to change answers
15. 15.🧩 Tara bought 6 markers and a bag for ₹130 in all. Each marker cost the same. What did one marker cost? (a) ₹21 (b) not enough info (c) ₹130 (d) ₹124
16. 16.🧩 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
17. 17.🧩 A box of oranges has 6 in each row. How many oranges are in the box? (a) 60 (b) not enough info (c) 6 (d) 12
18. 18.True or false: “It rained on my birthday once, so it always rains on birthdays.” does not give enough evidence. (a) False (b) True
19. 19.📝 What does “evidence” mean? (a) facts that support it (b) a guess (c) a rumour (d) a loud opinion
20. 20.🧩 A box has 5 rows of mangoes, with 8 in each row. How many mangoes are in the box? (a) 40 (b) not enough info (c) 13 (d) 48
21. 21.🧩 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
22. 22.🧩 Rohan bought 5 notebooks for ₹175 in all. Each notebook cost the same. What did one notebook cost? (a) ₹175 (b) not enough info (c) ₹40 (d) ₹35
23. 23.🧩 A box of laddoos has 4 in each row. How many laddoos are in the box? (a) not enough info (b) 8 (c) 40 (d) 4
24. 24.🧩 The film starts at 2 PM. It is a long film. When does it end? (a) not enough info (b) 4 PM (c) 5 PM (d) 3 PM
25. 25.🧩 Enough evidence or not? “A dog barked at me once, so all dogs are mean.” (a) enough evidence (b) not enough evidence
26. 26.True or false: “We asked all 30 classmates; 25 chose the zoo trip.” does not give enough evidence. (a) True (b) False
27. 27.🧩 Meera bought 3 notebooks and a cap for ₹195 in all. Each notebook cost the same. What did one notebook cost? (a) ₹192 (b) ₹195 (c) ₹65 (d) not enough info
28. 28.🧩 Nisha bought 5 notebooks for ₹75 in all. Each notebook cost the same. What did one notebook cost? (a) ₹75 (b) ₹20 (c) not enough info (d) ₹15
29. 29.🧩 Aarav is 11 years old. Diya is 5 years older than Aarav. How old is Diya? (a) 16 (b) not enough info (c) 5 (d) 17
30. 30.🧩 A box has 3 rows of apples, with 6 in each row. How many apples are in the box? (a) not enough info (b) 9 (c) 24 (d) 18
31. 31.🧩 The film starts at 5 PM. It is a long film. When does it end? (a) 7 PM (b) not enough info (c) 8 PM (d) 6 PM
32. 32.🧩 Enough evidence or not? “We asked all 30 classmates; 25 chose the zoo trip.” (a) not enough evidence (b) enough evidence
33. 33.🧩 Tara bought 6 notebooks and a cap for ₹210 in all. Each notebook cost the same. What did one notebook cost? (a) not enough info (b) ₹210 (c) ₹204 (d) ₹35
34. 34.🧩 The film starts at 2 PM and lasts 1 hour. When does it end? (a) 4 PM (b) 2 PM (c) 3 PM (d) not enough info
35. 35.True or false: “We measured the plant every day for a month; it grew 9 cm.” gives enough evidence. (a) True (b) False
36. 36.True or false: “We tried the new route for 10 days, and it was faster every day.” gives enough evidence. (a) False (b) True
37. 37.🧩 Meera is 9 years old. Ishaan is older than Meera. How old is Ishaan? (a) 10 (b) not enough info (c) 14 (d) 11
38. 38.🧩 Enough evidence or not? “It rained on my birthday once, so it always rains on birthdays.” (a) not enough evidence (b) enough evidence
39. 39.🧩 Nisha bought 2 mangoes and a lunch box for ₹130 in all. Each mango cost the same. What did one mango cost? (a) not enough info (b) ₹130 (c) ₹128 (d) ₹65
40. 40.🧩 Arjun is 8 years old. Meera is 2 years older than Arjun. How old is Meera? (a) 11 (b) 10 (c) 2 (d) not enough info

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