Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 923 · 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.📊 Which gives the best evidence about the class’s favourite game? (a) guessing (b) asking one friend (c) asking your pet (d) asking the whole class
2. 2.🧩 A box of apples has 7 in each row. How many apples are in the box? (a) 14 (b) 70 (c) 7 (d) not enough info
3. 3.🧩 Enough evidence or not? “One student said the canteen food was cold, so it is always cold.” (a) enough evidence (b) not enough evidence
4. 4.🥭 You taste one mango from a box of 50, and it is sweet. Can you be sure all 50 are sweet? (a) no mango is sweet (b) yes, mangoes match (c) no, check more (d) yes, it is certain
5. 5.🧩 Meera bought 5 notebooks for ₹300 in all. Each notebook cost the same. What did one notebook cost? (a) not enough info (b) ₹65 (c) ₹60 (d) ₹300
6. 6.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
7. 7.🧩 Aarav is 11 years old. Diya is 2 years older than Aarav. How old is Diya? (a) 14 (b) 2 (c) 13 (d) not enough info
8. 8.True or false: “We asked all 30 classmates; 25 chose the zoo trip.” gives enough evidence. (a) False (b) True
9. 9.🧩 Vihaan is 6 years old. Tara is 3 years older than Vihaan. How old is Tara? (a) 9 (b) 3 (c) 10 (d) not enough info
10. 10.🧩 Enough evidence or not? “We asked all 30 classmates; 25 chose the zoo trip.” (a) not enough evidence (b) enough evidence
11. 11.🐕 One dog barked at you. What is the fair conclusion? (a) that one dog barked (b) dogs hate you (c) never see dogs (d) all dogs are mean
12. 12.🧩 Diya bought 3 pens for ₹60 in all. Each pen cost the same. What did one pen cost? (a) not enough info (b) ₹60 (c) ₹25 (d) ₹20
13. 13.🧩 Vihaan bought 4 balls for ₹200 in all. Each ball cost the same. What did one ball cost? (a) ₹55 (b) ₹200 (c) not enough info (d) ₹50
14. 14.🧩 The film starts at 3 PM. It is a long film. When does it end? (a) 5 PM (b) not enough info (c) 4 PM (d) 6 PM
15. 15.🧩 A box of laddoos has 6 in each row. How many laddoos are in the box? (a) 6 (b) 60 (c) 12 (d) not enough info
16. 16.🧩 The film starts at 6 PM. It is a long film. When does it end? (a) 9 PM (b) not enough info (c) 7 PM (d) 8 PM
17. 17.📝 What does “evidence” mean? (a) a rumour (b) facts that support it (c) a guess (d) a loud opinion
18. 18.True or false: “We measured the plant every day for a month; it grew 9 cm.” does not give enough evidence. (a) True (b) False
19. 19.🧩 Before solving a word problem, first check… (a) the page number (b) what facts are given (c) your handwriting (d) the colour of ink
20. 20.🧩 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
21. 21.🧩 Meera bought 3 kites for ₹60 in all. Each kite cost the same. What did one kite cost? (a) ₹60 (b) not enough info (c) ₹25 (d) ₹20
22. 22.True or false: “My friend didn’t like the book, so the book is bad for everyone.” gives enough evidence. (a) True (b) False
23. 23.🧩 The film starts at 4 PM and lasts 3 hours. When does it end? (a) 4 PM (b) not enough info (c) 8 PM (d) 7 PM
24. 24.🧩 A box has 4 rows of guavas, with 9 in each row. How many guavas are in the box? (a) 45 (b) 36 (c) 13 (d) not enough info
25. 25.🧩 A box has 5 rows of guavas, with 7 in each row. How many guavas are in the box? (a) 12 (b) not enough info (c) 35 (d) 42
26. 26.🧩 Enough evidence or not? “We measured the plant every day for a month; it grew 9 cm.” (a) not enough evidence (b) enough evidence
27. 27.🧩 A box has 3 rows of guavas, with 5 in each row. How many guavas are in the box? (a) not enough info (b) 8 (c) 20 (d) 15
28. 28.🧩 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
29. 29.🧩 Saanvi bought 6 markers and a cap for ₹290 in all. Each marker cost the same. What did one marker cost? (a) ₹284 (b) ₹290 (c) not enough info (d) ₹48
30. 30.🧩 A box has 5 rows of guavas, with 5 in each row. How many guavas are in the box? (a) not enough info (b) 25 (c) 10 (d) 30
31. 31.🔬 Why do scientists repeat an experiment? (a) to be sure of results (b) to waste time (c) to change answers (d) for fun only
32. 32.🧩 The film starts at 2 PM and lasts 2 hours. When does it end? (a) 5 PM (b) 4 PM (c) 2 PM (d) not enough info
33. 33.🧩 A box has 3 rows of eggs, with 4 in each row. How many eggs are in the box? (a) not enough info (b) 12 (c) 7 (d) 16
34. 34.🧩 A box of apples has 8 in each row. How many apples are in the box? (a) 8 (b) 16 (c) not enough info (d) 80
35. 35.🧩 Ishaan is 10 years old. Aarav is 2 years older than Ishaan. How old is Aarav? (a) 13 (b) 2 (c) not enough info (d) 12
36. 36.True or false: “A dog barked at me once, so all dogs are mean.” does not give enough evidence. (a) False (b) True
37. 37.🧩 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
38. 38.🧩 Nisha is 6 years old. Aarav is 3 years older than Nisha. How old is Aarav? (a) 9 (b) not enough info (c) 10 (d) 3
39. 39.🧩 The film starts at 6 PM and lasts 1 hour. When does it end? (a) not enough info (b) 8 PM (c) 6 PM (d) 7 PM
40. 40.🧩 A box has 5 rows of guavas, with 8 in each row. How many guavas are in the box? (a) 48 (b) 40 (c) not enough info (d) 13

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