Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 593 · 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.🧩 Nisha bought 2 kites for ₹120 in all. Each kite cost the same. What did one kite cost? (a) ₹120 (b) ₹65 (c) ₹60 (d) not enough info
2. 2.True or false: “We checked all 40 mangoes in the box; every one was ripe.” gives enough evidence. (a) True (b) False
3. 3.🥭 You taste one mango from a box of 50, and it is sweet. Can you be sure all 50 are sweet? (a) yes, mangoes match (b) no, check more (c) no mango is sweet (d) yes, it is certain
4. 4.🧩 The film starts at 3 PM and lasts 2 hours. When does it end? (a) 3 PM (b) not enough info (c) 5 PM (d) 6 PM
5. 5.🧩 Enough evidence or not? “One mango in the box was sour, so all the mangoes are sour.” (a) not enough evidence (b) enough evidence
6. 6.🧩 A box has 5 rows of guavas, with 5 in each row. How many guavas are in the box? (a) 30 (b) 10 (c) 25 (d) not enough info
7. 7.📝 What does “evidence” mean? (a) a rumour (b) a guess (c) facts that support it (d) a loud opinion
8. 8.🧩 Vihaan bought 4 balls for ₹100 in all. Each ball cost the same. What did one ball cost? (a) ₹100 (b) not enough info (c) ₹30 (d) ₹25
9. 9.🧩 The film starts at 2 PM and lasts 1 hour. When does it end? (a) 2 PM (b) 4 PM (c) 3 PM (d) not enough info
10. 10.🧩 Before solving a word problem, first check… (a) what facts are given (b) the page number (c) your handwriting (d) the colour of ink
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.🧩 A box has 3 rows of apples, with 5 in each row. How many apples are in the box? (a) not enough info (b) 15 (c) 8 (d) 20
13. 13.🧩 Kabir is 6 years old. Aarav is older than Kabir. How old is Aarav? (a) 7 (b) not enough info (c) 8 (d) 11
14. 14.True or false: “One mango in the box was sour, so all the mangoes are sour.” gives enough evidence. (a) True (b) False
15. 15.🧩 The film starts at 4 PM and lasts 1 hour. When does it end? (a) 4 PM (b) 6 PM (c) not enough info (d) 5 PM
16. 16.🧩 Diya is 11 years old. Aarav is 4 years older than Diya. How old is Aarav? (a) 16 (b) 4 (c) not enough info (d) 15
17. 17.🧩 Meera bought 3 mangoes for ₹75 in all. Each mango cost the same. What did one mango cost? (a) ₹75 (b) ₹25 (c) ₹30 (d) not enough info
18. 18.🐕 One dog barked at you. What is the fair conclusion? (a) never see dogs (b) dogs hate you (c) all dogs are mean (d) that one dog barked
19. 19.🧩 Enough evidence or not? “One student said the canteen food was cold, so it is always cold.” (a) not enough evidence (b) enough evidence
20. 20.🧩 The film starts at 4 PM and lasts 3 hours. When does it end? (a) not enough info (b) 7 PM (c) 4 PM (d) 8 PM
21. 21.🧩 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
22. 22.🔬 Why do scientists repeat an experiment? (a) to be sure of results (b) for fun only (c) to change answers (d) to waste time
23. 23.📊 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
24. 24.🧩 Ananya is 6 years old. Aarav is 9 years older than Ananya. How old is Aarav? (a) not enough info (b) 16 (c) 9 (d) 15
25. 25.🧩 The film starts at 4 PM. It is a long film. When does it end? (a) not enough info (b) 6 PM (c) 5 PM (d) 7 PM
26. 26.True or false: “A dog barked at me once, so all dogs are mean.” gives enough evidence. (a) False (b) True
27. 27.🧩 Ananya is 6 years old. Nisha is 4 years older than Ananya. How old is Nisha? (a) not enough info (b) 4 (c) 11 (d) 10
28. 28.🧩 A box of oranges has 5 in each row. How many oranges are in the box? (a) 5 (b) 10 (c) 50 (d) not enough info
29. 29.🧩 Diya is 12 years old. Rohan is 2 years older than Diya. How old is Rohan? (a) 2 (b) 14 (c) not enough info (d) 15
30. 30.🧩 Meera is 8 years old. Aarav is older than Meera. How old is Aarav? (a) 9 (b) 13 (c) 10 (d) not enough info
31. 31.🧩 Enough evidence or not? “We tested 20 seeds, and 18 of them sprouted.” (a) enough evidence (b) not enough evidence
32. 32.🧩 The film starts at 5 PM. It is a long film. When does it end? (a) 7 PM (b) 6 PM (c) not enough info (d) 8 PM
33. 33.🧩 Enough evidence or not? “We asked all 30 classmates; 25 chose the zoo trip.” (a) enough evidence (b) not enough evidence
34. 34.🧩 A box has 3 rows of oranges, with 7 in each row. How many oranges are in the box? (a) not enough info (b) 28 (c) 10 (d) 21
35. 35.🧩 A box of laddoos has 6 in each row. How many laddoos are in the box? (a) 6 (b) 60 (c) not enough info (d) 12
36. 36.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
37. 37.🧩 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
38. 38.🧩 Arjun bought 2 notebooks and a cap for ₹80 in all. Each notebook cost the same. What did one notebook cost? (a) not enough info (b) ₹78 (c) ₹40 (d) ₹80
39. 39.🧩 The film starts at 6 PM. It is a long film. When does it end? (a) not enough info (b) 7 PM (c) 9 PM (d) 8 PM
40. 40.🧩 Enough evidence or not? “A dog barked at me once, so all dogs are mean.” (a) enough evidence (b) not enough evidence

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