Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 551 · 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 measured the plant every day for a month; it grew 9 cm.” (a) enough evidence (b) not enough evidence
2. 2.🧩 Ananya is 7 years old. Arjun is 2 years older than Ananya. How old is Arjun? (a) not enough info (b) 9 (c) 2 (d) 10
3. 3.🧩 A box has 3 rows of oranges, with 9 in each row. How many oranges are in the box? (a) 36 (b) not enough info (c) 27 (d) 12
4. 4.📊 Which gives the best evidence about the class’s favourite game? (a) asking your pet (b) asking one friend (c) guessing (d) asking the whole class
5. 5.🧩 Tara is 7 years old. Meera is 6 years older than Tara. How old is Meera? (a) 14 (b) 13 (c) 6 (d) not enough info
6. 6.🧩 Arjun bought 2 pens and a water bottle for ₹180 in all. Each pen cost the same. What did one pen cost? (a) ₹90 (b) ₹178 (c) ₹180 (d) not enough info
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.📝 What does “evidence” mean? (a) a guess (b) a loud opinion (c) facts that support it (d) a rumour
9. 9.🧩 The film starts at 4 PM. It is a long film. When does it end? (a) 7 PM (b) 5 PM (c) not enough info (d) 6 PM
10. 10.🧩 A box has 5 rows of laddoos, with 7 in each row. How many laddoos are in the box? (a) 42 (b) 12 (c) not enough info (d) 35
11. 11.🧩 Diya bought 3 pens for ₹45 in all. Each pen cost the same. What did one pen cost? (a) not enough info (b) ₹15 (c) ₹45 (d) ₹20
12. 12.🧩 Kabir bought 6 balls and a cap for ₹130 in all. Each ball cost the same. What did one ball cost? (a) ₹21 (b) not enough info (c) ₹130 (d) ₹124
13. 13.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
14. 14.🧩 Nisha is 8 years old. Saanvi is older than Nisha. How old is Saanvi? (a) 13 (b) 9 (c) not enough info (d) 10
15. 15.🧩 Kabir bought 2 notebooks and a bag for ₹60 in all. Each notebook cost the same. What did one notebook cost? (a) ₹30 (b) ₹60 (c) not enough info (d) ₹58
16. 16.🧩 Enough evidence or not? “We checked all 40 mangoes in the box; every one was ripe.” (a) enough evidence (b) not enough evidence
17. 17.🧩 The film starts at 4 PM and lasts 1 hour. When does it end? (a) 6 PM (b) not enough info (c) 5 PM (d) 4 PM
18. 18.🧩 Kabir bought 6 kites and a cap for ₹110 in all. Each kite cost the same. What did one kite cost? (a) ₹18 (b) ₹110 (c) ₹104 (d) not enough info
19. 19.🧩 A box of apples has 6 in each row. How many apples are in the box? (a) 6 (b) 12 (c) 60 (d) not enough info
20. 20.True or false: “One mango in the box was sour, so all the mangoes are sour.” does not give enough evidence. (a) True (b) False
21. 21.🧩 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
22. 22.🧩 Enough evidence or not? “One student said the canteen food was cold, so it is always cold.” (a) not enough evidence (b) enough evidence
23. 23.🧩 Enough evidence or not? “A dog barked at me once, so all dogs are mean.” (a) enough evidence (b) not enough evidence
24. 24.🧩 Ishaan bought 2 kites for ₹110 in all. Each kite cost the same. What did one kite cost? (a) ₹60 (b) ₹110 (c) not enough info (d) ₹55
25. 25.🧩 Arjun bought 4 pens for ₹40 in all. Each pen cost the same. What did one pen cost? (a) ₹10 (b) not enough info (c) ₹40 (d) ₹15
26. 26.🧩 Enough evidence or not? “One mango in the box was sour, so all the mangoes are sour.” (a) not enough evidence (b) enough evidence
27. 27.🧩 Arjun is 11 years old. Diya is 3 years older than Arjun. How old is Diya? (a) not enough info (b) 3 (c) 14 (d) 15
28. 28.🧩 Ishaan bought 3 notebooks for ₹90 in all. Each notebook cost the same. What did one notebook cost? (a) ₹30 (b) ₹35 (c) ₹90 (d) not enough info
29. 29.🧩 A box has 8 rows of oranges, with 8 in each row. How many oranges are in the box? (a) 16 (b) 72 (c) not enough info (d) 64
30. 30.True or false: “We checked all 40 mangoes in the box; every one was ripe.” gives enough evidence. (a) False (b) True
31. 31.🧩 The film starts at 5 PM and lasts 1 hour. When does it end? (a) 5 PM (b) 6 PM (c) 7 PM (d) not enough info
32. 32.🧩 A box of laddoos has 5 in each row. How many laddoos are in the box? (a) 5 (b) 50 (c) not enough info (d) 10
33. 33.🧩 Aarav bought 6 mangoes for ₹180 in all. Each mango cost the same. What did one mango cost? (a) ₹30 (b) not enough info (c) ₹180 (d) ₹35
34. 34.🧩 Enough evidence or not? “We asked all 30 classmates; 25 chose the zoo trip.” (a) enough evidence (b) not enough evidence
35. 35.🧩 Arjun is 8 years old. Rohan is older than Arjun. How old is Rohan? (a) 10 (b) not enough info (c) 13 (d) 9
36. 36.🧩 The film starts at 5 PM. It is a long film. When does it end? (a) 6 PM (b) 7 PM (c) 8 PM (d) not enough info
37. 37.True or false: “One student said the canteen food was cold, so it is always cold.” gives enough evidence. (a) False (b) True
38. 38.🧩 Ishaan is 8 years old. Rohan is 4 years older than Ishaan. How old is Rohan? (a) 13 (b) not enough info (c) 4 (d) 12
39. 39.🧩 The film starts at 5 PM and lasts 2 hours. When does it end? (a) 8 PM (b) not enough info (c) 5 PM (d) 7 PM
40. 40.True or false: “We tried the new route for 10 days, and it was faster every day.” gives enough evidence. (a) True (b) False

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