Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 929 · 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.🧩 Enough evidence or not? “We tested 20 seeds, and 18 of them sprouted.” (a) not enough evidence (b) enough evidence
2. 2.True or false: “We tried the new route for 10 days, and it was faster every day.” gives enough evidence. (a) True (b) False
3. 3.🧩 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
4. 4.🧩 Enough evidence or not? “We checked all 40 mangoes in the box; every one was ripe.” (a) enough evidence (b) not enough evidence
5. 5.🧩 Before solving a word problem, first check… (a) the page number (b) the colour of ink (c) your handwriting (d) what facts are given
6. 6.True or false: “We asked all 30 classmates; 25 chose the zoo trip.” does not give enough evidence. (a) False (b) True
7. 7.🧩 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
8. 8.True or false: “We tested 20 seeds, and 18 of them sprouted.” does not give enough evidence. (a) True (b) False
9. 9.🧩 Kabir bought 2 pens for ₹100 in all. Each pen cost the same. What did one pen cost? (a) ₹55 (b) ₹100 (c) ₹50 (d) not enough info
10. 10.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
11. 11.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
12. 12.🧩 Enough evidence or not? “We measured the plant every day for a month; it grew 9 cm.” (a) not enough evidence (b) enough evidence
13. 13.📝 What does “evidence” mean? (a) a guess (b) a rumour (c) a loud opinion (d) facts that support it
14. 14.🐕 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
15. 15.🧩 Ishaan is 7 years old. Ananya is older than Ishaan. How old is Ananya? (a) 8 (b) 9 (c) 12 (d) not enough info
16. 16.🧩 Aarav is 6 years old. Tara is older than Aarav. How old is Tara? (a) 8 (b) not enough info (c) 11 (d) 7
17. 17.🧩 Enough evidence or not? “It rained on my birthday once, so it always rains on birthdays.” (a) not enough evidence (b) enough evidence
18. 18.🧩 The film starts at 6 PM and lasts 2 hours. When does it end? (a) not enough info (b) 9 PM (c) 8 PM (d) 6 PM
19. 19.🧩 Vihaan is 7 years old. Ananya is 9 years older than Vihaan. How old is Ananya? (a) 17 (b) not enough info (c) 16 (d) 9
20. 20.📊 Which gives the best evidence about the class’s favourite game? (a) guessing (b) asking your pet (c) asking one friend (d) asking the whole class
21. 21.🧩 The film starts at 6 PM. It is a long film. When does it end? (a) 9 PM (b) 8 PM (c) not enough info (d) 7 PM
22. 22.🧩 A box of oranges has 8 in each row. How many oranges are in the box? (a) 16 (b) 8 (c) not enough info (d) 80
23. 23.🥭 You taste one mango from a box of 50, and it is sweet. Can you be sure all 50 are sweet? (a) yes, it is certain (b) yes, mangoes match (c) no mango is sweet (d) no, check more
24. 24.🧩 Tara is 6 years old. Saanvi is older than Tara. How old is Saanvi? (a) 7 (b) 8 (c) not enough info (d) 11
25. 25.🧩 Diya is 6 years old. Meera is older than Diya. How old is Meera? (a) 8 (b) 11 (c) 7 (d) not enough info
26. 26.🧩 A box has 7 rows of laddoos, with 6 in each row. How many laddoos are in the box? (a) 13 (b) not enough info (c) 48 (d) 42
27. 27.True or false: “It rained on my birthday once, so it always rains on birthdays.” gives enough evidence. (a) False (b) True
28. 28.🧩 Tara bought 2 notebooks for ₹100 in all. Each notebook cost the same. What did one notebook cost? (a) ₹100 (b) ₹50 (c) ₹55 (d) not enough info
29. 29.🧩 Aarav bought 2 pens for ₹20 in all. Each pen cost the same. What did one pen cost? (a) ₹20 (b) ₹15 (c) not enough info (d) ₹10
30. 30.🧩 The film starts at 2 PM. It is a long film. When does it end? (a) 4 PM (b) 3 PM (c) not enough info (d) 5 PM
31. 31.True or false: “A dog barked at me once, so all dogs are mean.” gives enough evidence. (a) True (b) False
32. 32.🧩 The film starts at 2 PM and lasts 2 hours. When does it end? (a) 4 PM (b) 5 PM (c) 2 PM (d) not enough info
33. 33.🧩 A box of apples has 9 in each row. How many apples are in the box? (a) 9 (b) not enough info (c) 18 (d) 90
34. 34.🧩 The film starts at 6 PM and lasts 3 hours. When does it end? (a) 10 PM (b) 9 PM (c) 6 PM (d) not enough info
35. 35.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
36. 36.True or false: “My friend didn’t like the book, so the book is bad for everyone.” gives enough evidence. (a) False (b) True
37. 37.🧩 A box of eggs has 8 in each row. How many eggs are in the box? (a) 80 (b) not enough info (c) 16 (d) 8
38. 38.🧩 The film starts at 5 PM. It is a long film. When does it end? (a) 8 PM (b) 6 PM (c) not enough info (d) 7 PM
39. 39.🧩 Aarav bought 3 balls for ₹60 in all. Each ball cost the same. What did one ball cost? (a) ₹20 (b) not enough info (c) ₹25 (d) ₹60
40. 40.🧩 The film starts at 4 PM and lasts 1 hour. When does it end? (a) 4 PM (b) not enough info (c) 5 PM (d) 6 PM

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