Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 2 · 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.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
2. 2.True or false: “We checked all 40 mangoes in the box; every one was ripe.” does not give enough evidence. (a) False (b) True
3. 3.🧩 Enough evidence or not? “A dog barked at me once, so all dogs are mean.” (a) not enough evidence (b) enough evidence
4. 4.True or false: “We tried the new route for 10 days, and it was faster every day.” gives enough evidence. (a) True (b) False
5. 5.🧩 Enough evidence or not? “We measured the plant every day for a month; it grew 9 cm.” (a) not enough evidence (b) enough evidence
6. 6.🧩 Vihaan is 7 years old. Rohan is 4 years older than Vihaan. How old is Rohan? (a) 12 (b) not enough info (c) 11 (d) 4
7. 7.🧩 Arjun bought 3 kites and a lunch box for ₹155 in all. Each kite cost the same. What did one kite cost? (a) ₹152 (b) not enough info (c) ₹51 (d) ₹155
8. 8.🧩 The film starts at 3 PM and lasts 1 hour. When does it end? (a) 3 PM (b) 5 PM (c) 4 PM (d) not enough info
9. 9.🔬 Why do scientists repeat an experiment? (a) to be sure of results (b) to waste time (c) to change answers (d) for fun only
10. 10.True or false: “We asked all 30 classmates; 25 chose the zoo trip.” does not give enough evidence. (a) False (b) True
11. 11.🧩 Enough evidence or not? “We tested 20 seeds, and 18 of them sprouted.” (a) not enough evidence (b) enough evidence
12. 12.🧩 Tara is 10 years old. Saanvi is older than Tara. How old is Saanvi? (a) 12 (b) 11 (c) 15 (d) not enough info
13. 13.True or false: “We tested 20 seeds, and 18 of them sprouted.” does not give enough evidence. (a) True (b) False
14. 14.🧩 A box has 5 rows of oranges, with 6 in each row. How many oranges are in the box? (a) 36 (b) not enough info (c) 30 (d) 11
15. 15.True or false: “We checked all 40 mangoes in the box; every one was ripe.” gives enough evidence. (a) True (b) False
16. 16.🧩 A box of laddoos has 5 in each row. How many laddoos are in the box? (a) 10 (b) 5 (c) 50 (d) not enough info
17. 17.📊 Which gives the best evidence about the class’s favourite game? (a) asking your pet (b) asking one friend (c) asking the whole class (d) guessing
18. 18.🧩 Aarav bought 2 kites for ₹60 in all. Each kite cost the same. What did one kite cost? (a) ₹30 (b) ₹35 (c) ₹60 (d) not enough info
19. 19.🧩 A box has 6 rows of oranges, with 5 in each row. How many oranges are in the box? (a) 35 (b) 30 (c) 11 (d) not enough info
20. 20.📝 What does “evidence” mean? (a) a rumour (b) a guess (c) a loud opinion (d) facts that support it
21. 21.🧩 The film starts at 4 PM and lasts 2 hours. When does it end? (a) 4 PM (b) 6 PM (c) 7 PM (d) not enough info
22. 22.🧩 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
23. 23.🧩 Ananya bought 5 balls for ₹100 in all. Each ball cost the same. What did one ball cost? (a) ₹100 (b) ₹20 (c) ₹25 (d) not enough info
24. 24.🧩 Meera is 7 years old. Saanvi is older than Meera. How old is Saanvi? (a) 8 (b) 9 (c) 12 (d) not enough info
25. 25.🧩 The film starts at 6 PM and lasts 3 hours. When does it end? (a) 9 PM (b) 6 PM (c) 10 PM (d) not enough info
26. 26.🧩 A box has 5 rows of apples, with 5 in each row. How many apples are in the box? (a) 25 (b) not enough info (c) 10 (d) 30
27. 27.🧩 Enough evidence or not? “We checked all 40 mangoes in the box; every one was ripe.” (a) not enough evidence (b) enough evidence
28. 28.🧩 Kabir is 11 years old. Meera is older than Kabir. How old is Meera? (a) 16 (b) not enough info (c) 13 (d) 12
29. 29.🧩 Aarav bought 2 mangoes and a water bottle for ₹110 in all. Each mango cost the same. What did one mango cost? (a) ₹110 (b) ₹108 (c) ₹55 (d) not enough info
30. 30.🧩 Enough evidence or not? “One mango in the box was sour, so all the mangoes are sour.” (a) enough evidence (b) not enough evidence
31. 31.🧩 Meera is 7 years old. Ananya is 8 years older than Meera. How old is Ananya? (a) 8 (b) 16 (c) 15 (d) not enough info
32. 32.🐕 One dog barked at you. What is the fair conclusion? (a) never see dogs (b) all dogs are mean (c) dogs hate you (d) that one dog barked
33. 33.🧩 Nisha is 11 years old. Tara is older than Nisha. How old is Tara? (a) 13 (b) not enough info (c) 12 (d) 16
34. 34.🧩 The film starts at 2 PM. It is a long film. When does it end? (a) not enough info (b) 4 PM (c) 5 PM (d) 3 PM
35. 35.🧩 Diya is 8 years old. Saanvi is older than Diya. How old is Saanvi? (a) 10 (b) 9 (c) 13 (d) not enough info
36. 36.True or false: “A dog barked at me once, so all dogs are mean.” gives enough evidence. (a) True (b) False
37. 37.🧩 A box has 6 rows of eggs, with 8 in each row. How many eggs are in the box? (a) 48 (b) 14 (c) 56 (d) not enough info
38. 38.🧩 A box of eggs has 8 in each row. How many eggs are in the box? (a) 80 (b) 8 (c) not enough info (d) 16
39. 39.🧩 Enough evidence or not? “It rained on my birthday once, so it always rains on birthdays.” (a) not enough evidence (b) enough evidence
40. 40.🧩 Diya bought 3 kites for ₹75 in all. Each kite cost the same. What did one kite cost? (a) ₹30 (b) not enough info (c) ₹25 (d) ₹75

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