Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 41 · 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 7 rows of guavas, with 7 in each row. How many guavas are in the box? (a) 14 (b) 56 (c) not enough info (d) 49
2. 2.True or false: “We tried the new route for 10 days, and it was faster every day.” does not give enough evidence. (a) False (b) True
3. 3.🧩 Enough evidence or not? “We measured the plant every day for a month; it grew 9 cm.” (a) enough evidence (b) not enough evidence
4. 4.🧩 A box of laddoos has 7 in each row. How many laddoos are in the box? (a) 70 (b) not enough info (c) 14 (d) 7
5. 5.🧩 The film starts at 2 PM and lasts 3 hours. When does it end? (a) not enough info (b) 6 PM (c) 2 PM (d) 5 PM
6. 6.🧩 Enough evidence or not? “We tested 20 seeds, and 18 of them sprouted.” (a) enough evidence (b) not enough evidence
7. 7.📊 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
8. 8.🧩 Before solving a word problem, first check… (a) what facts are given (b) the colour of ink (c) your handwriting (d) the page number
9. 9.🧩 The film starts at 3 PM. It is a long film. When does it end? (a) not enough info (b) 5 PM (c) 6 PM (d) 4 PM
10. 10.True or false: “We tested 20 seeds, and 18 of them sprouted.” does not give enough evidence. (a) False (b) True
11. 11.True or false: “One student said the canteen food was cold, so it is always cold.” gives enough evidence. (a) False (b) True
12. 12.📝 What does “evidence” mean? (a) facts that support it (b) a loud opinion (c) a rumour (d) a guess
13. 13.🧩 Enough evidence or not? “We asked all 30 classmates; 25 chose the zoo trip.” (a) not enough evidence (b) enough evidence
14. 14.True or false: “We asked all 30 classmates; 25 chose the zoo trip.” gives enough evidence. (a) True (b) False
15. 15.🧩 Saanvi bought 2 mangoes and a bag for ₹140 in all. Each mango cost the same. What did one mango cost? (a) not enough info (b) ₹138 (c) ₹140 (d) ₹70
16. 16.🧩 Enough evidence or not? “A dog barked at me once, so all dogs are mean.” (a) not enough evidence (b) enough evidence
17. 17.🧩 A box of laddoos has 5 in each row. How many laddoos are in the box? (a) 50 (b) 5 (c) 10 (d) not enough info
18. 18.True or false: “We checked all 40 mangoes in the box; every one was ripe.” gives enough evidence. (a) True (b) False
19. 19.🧩 Meera is 9 years old. Nisha is older than Meera. How old is Nisha? (a) 10 (b) 11 (c) 14 (d) not enough info
20. 20.True or false: “We asked all 30 classmates; 25 chose the zoo trip.” does not give enough evidence. (a) False (b) True
21. 21.True or false: “My friend didn’t like the book, so the book is bad for everyone.” gives enough evidence. (a) False (b) True
22. 22.🧩 Diya bought 2 notebooks and a cap for ₹60 in all. Each notebook cost the same. What did one notebook cost? (a) ₹58 (b) ₹60 (c) ₹30 (d) not enough info
23. 23.🧩 A box of laddoos has 6 in each row. How many laddoos are in the box? (a) 6 (b) 12 (c) 60 (d) not enough info
24. 24.🔬 Why do scientists repeat an experiment? (a) to change answers (b) for fun only (c) to waste time (d) to be sure of results
25. 25.🧩 Aarav is 7 years old. Vihaan is older than Aarav. How old is Vihaan? (a) 9 (b) not enough info (c) 12 (d) 8
26. 26.🧩 Ishaan bought 3 markers for ₹150 in all. Each marker cost the same. What did one marker cost? (a) ₹55 (b) not enough info (c) ₹50 (d) ₹150
27. 27.🧩 Tara bought 3 pens for ₹135 in all. Each pen cost the same. What did one pen cost? (a) not enough info (b) ₹45 (c) ₹50 (d) ₹135
28. 28.🧩 A box has 6 rows of apples, with 8 in each row. How many apples are in the box? (a) 48 (b) 14 (c) not enough info (d) 56
29. 29.🧩 Diya is 7 years old. Rohan is 7 years older than Diya. How old is Rohan? (a) not enough info (b) 7 (c) 14 (d) 15
30. 30.🧩 A box has 3 rows of oranges, with 4 in each row. How many oranges are in the box? (a) 16 (b) 7 (c) not enough info (d) 12
31. 31.True or false: “A dog barked at me once, so all dogs are mean.” does not give enough evidence. (a) True (b) False
32. 32.🧩 The film starts at 2 PM. It is a long film. When does it end? (a) 4 PM (b) not enough info (c) 5 PM (d) 3 PM
33. 33.🧩 Enough evidence or not? “One mango in the box was sour, so all the mangoes are sour.” (a) enough evidence (b) not enough evidence
34. 34.🧩 Diya bought 4 notebooks and a bag for ₹290 in all. Each notebook cost the same. What did one notebook cost? (a) not enough info (b) ₹286 (c) ₹72 (d) ₹290
35. 35.🧩 The film starts at 6 PM. It is a long film. When does it end? (a) 7 PM (b) 8 PM (c) not enough info (d) 9 PM
36. 36.🧩 Diya is 10 years old. Ananya is older than Diya. How old is Ananya? (a) not enough info (b) 15 (c) 12 (d) 11
37. 37.🧩 A box has 4 rows of apples, with 5 in each row. How many apples are in the box? (a) 9 (b) not enough info (c) 25 (d) 20
38. 38.🐕 One dog barked at you. What is the fair conclusion? (a) never see dogs (b) all dogs are mean (c) that one dog barked (d) dogs hate you
39. 39.🧩 Enough evidence or not? “We checked all 40 mangoes in the box; every one was ripe.” (a) enough evidence (b) not enough evidence
40. 40.True or false: “It rained on my birthday once, so it always rains on birthdays.” does not give enough evidence. (a) False (b) True

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