Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 545 · 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) asking one friend (b) asking your pet (c) asking the whole class (d) guessing
2. 2.🧩 Diya bought 6 markers for ₹180 in all. Each marker cost the same. What did one marker cost? (a) not enough info (b) ₹30 (c) ₹35 (d) ₹180
3. 3.🧩 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
4. 4.🧩 The film starts at 3 PM and lasts 1 hour. When does it end? (a) not enough info (b) 3 PM (c) 4 PM (d) 5 PM
5. 5.🧩 Enough evidence or not? “We measured the plant every day for a month; it grew 9 cm.” (a) enough evidence (b) not enough evidence
6. 6.🧩 Tara bought 3 mangoes for ₹150 in all. Each mango cost the same. What did one mango cost? (a) ₹55 (b) ₹150 (c) not enough info (d) ₹50
7. 7.🧩 Before solving a word problem, first check… (a) the colour of ink (b) what facts are given (c) your handwriting (d) the page number
8. 8.📝 What does “evidence” mean? (a) a guess (b) facts that support it (c) a rumour (d) a loud opinion
9. 9.🧩 The film starts at 2 PM and lasts 2 hours. When does it end? (a) 5 PM (b) 2 PM (c) not enough info (d) 4 PM
10. 10.🧩 A box of oranges has 4 in each row. How many oranges are in the box? (a) 40 (b) 8 (c) not enough info (d) 4
11. 11.🧩 Diya bought 2 balls and a water bottle for ₹70 in all. Each ball cost the same. What did one ball cost? (a) ₹70 (b) ₹68 (c) ₹35 (d) not enough info
12. 12.🧩 Arjun bought 6 notebooks and a water bottle for ₹170 in all. Each notebook cost the same. What did one notebook cost? (a) not enough info (b) ₹28 (c) ₹170 (d) ₹164
13. 13.🧩 Vihaan is 12 years old. Aarav is 5 years older than Vihaan. How old is Aarav? (a) 17 (b) 18 (c) 5 (d) not enough info
14. 14.🧩 Enough evidence or not? “We checked all 40 mangoes in the box; every one was ripe.” (a) not enough evidence (b) enough evidence
15. 15.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
16. 16.🐕 One dog barked at you. What is the fair conclusion? (a) all dogs are mean (b) never see dogs (c) that one dog barked (d) dogs hate you
17. 17.🧩 Arjun bought 3 notebooks and a bag for ₹135 in all. Each notebook cost the same. What did one notebook cost? (a) ₹135 (b) ₹45 (c) ₹132 (d) not enough info
18. 18.True or false: “We tested 20 seeds, and 18 of them sprouted.” does not give enough evidence. (a) True (b) False
19. 19.🧩 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
20. 20.True or false: “We checked all 40 mangoes in the box; every one was ripe.” gives enough evidence. (a) True (b) False
21. 21.🧩 A box of apples has 4 in each row. How many apples are in the box? (a) 8 (b) 4 (c) not enough info (d) 40
22. 22.🧩 A box has 8 rows of mangoes, with 6 in each row. How many mangoes are in the box? (a) 54 (b) 48 (c) not enough info (d) 14
23. 23.True or false: “One mango in the box was sour, so all the mangoes are sour.” does not give enough evidence. (a) False (b) True
24. 24.🧩 Enough evidence or not? “We tested 20 seeds, and 18 of them sprouted.” (a) not enough evidence (b) enough evidence
25. 25.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
26. 26.🧩 The film starts at 2 PM. It is a long film. When does it end? (a) 3 PM (b) 5 PM (c) not enough info (d) 4 PM
27. 27.True or false: “We measured the plant every day for a month; it grew 9 cm.” gives enough evidence. (a) False (b) True
28. 28.True or false: “It rained on my birthday once, so it always rains on birthdays.” gives enough evidence. (a) True (b) False
29. 29.🧩 Enough evidence or not? “One mango in the box was sour, so all the mangoes are sour.” (a) enough evidence (b) not enough evidence
30. 30.🧩 Ananya bought 3 kites for ₹105 in all. Each kite cost the same. What did one kite cost? (a) ₹105 (b) not enough info (c) ₹40 (d) ₹35
31. 31.🧩 A box has 7 rows of apples, with 4 in each row. How many apples are in the box? (a) 32 (b) 11 (c) not enough info (d) 28
32. 32.🧩 The film starts at 4 PM and lasts 1 hour. When does it end? (a) 6 PM (b) not enough info (c) 4 PM (d) 5 PM
33. 33.🧩 A box has 4 rows of laddoos, with 6 in each row. How many laddoos are in the box? (a) 30 (b) 10 (c) not enough info (d) 24
34. 34.🧩 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
35. 35.True or false: “A dog barked at me once, so all dogs are mean.” gives enough evidence. (a) True (b) False
36. 36.True or false: “It rained on my birthday once, so it always rains on birthdays.” does not give enough evidence. (a) True (b) False
37. 37.🧩 Enough evidence or not? “A dog barked at me once, so all dogs are mean.” (a) not enough evidence (b) enough evidence
38. 38.🧩 Aarav is 6 years old. Meera is 3 years older than Aarav. How old is Meera? (a) 3 (b) 9 (c) not enough info (d) 10
39. 39.🧩 A box of mangoes has 6 in each row. How many mangoes are in the box? (a) 60 (b) 6 (c) not enough info (d) 12
40. 40.🧩 Enough evidence or not? “One student said the canteen food was cold, so it is always cold.” (a) enough evidence (b) not enough evidence

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