Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 87 · 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.🧩 Tara bought 4 kites for ₹180 in all. Each kite cost the same. What did one kite cost? (a) ₹50 (b) ₹45 (c) ₹180 (d) not enough info
2. 2.🧩 Enough evidence or not? “We measured the plant every day for a month; it grew 9 cm.” (a) enough evidence (b) not enough evidence
3. 3.🧩 The film starts at 4 PM and lasts 2 hours. When does it end? (a) 7 PM (b) not enough info (c) 4 PM (d) 6 PM
4. 4.🧩 Enough evidence or not? “One student said the canteen food was cold, so it is always cold.” (a) not enough evidence (b) enough evidence
5. 5.🧩 The film starts at 5 PM. It is a long film. When does it end? (a) 6 PM (b) 7 PM (c) not enough info (d) 8 PM
6. 6.🐕 One dog barked at you. What is the fair conclusion? (a) dogs hate you (b) never see dogs (c) all dogs are mean (d) that one dog barked
7. 7.🧩 Rohan bought 5 mangoes for ₹50 in all. Each mango cost the same. What did one mango cost? (a) ₹10 (b) ₹15 (c) ₹50 (d) not enough info
8. 8.True or false: “A dog barked at me once, so all dogs are mean.” does not give enough evidence. (a) False (b) True
9. 9.🧩 Nisha bought 6 balls and a water bottle for ₹220 in all. Each ball cost the same. What did one ball cost? (a) ₹214 (b) not enough info (c) ₹220 (d) ₹36
10. 10.🧩 Enough evidence or not? “We asked all 30 classmates; 25 chose the zoo trip.” (a) not enough evidence (b) enough evidence
11. 11.True or false: “One mango in the box was sour, so all the mangoes are sour.” gives enough evidence. (a) True (b) False
12. 12.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
13. 13.📝 What does “evidence” mean? (a) a loud opinion (b) a guess (c) a rumour (d) facts that support it
14. 14.🥭 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 mango is sweet (c) yes, it is certain (d) no, check more
15. 15.📊 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
16. 16.🧩 Rohan bought 3 kites and a cap for ₹200 in all. Each kite cost the same. What did one kite cost? (a) ₹200 (b) ₹66 (c) ₹197 (d) not enough info
17. 17.True or false: “We checked all 40 mangoes in the box; every one was ripe.” gives enough evidence. (a) False (b) True
18. 18.🧩 Meera is 7 years old. Tara is older than Meera. How old is Tara? (a) 8 (b) 9 (c) 12 (d) not enough info
19. 19.🧩 The film starts at 4 PM. It is a long film. When does it end? (a) 5 PM (b) 6 PM (c) not enough info (d) 7 PM
20. 20.🧩 Diya is 6 years old. Meera is 9 years older than Diya. How old is Meera? (a) 16 (b) not enough info (c) 9 (d) 15
21. 21.True or false: “One student said the canteen food was cold, so it is always cold.” does not give enough evidence. (a) False (b) True
22. 22.🧩 Nisha is 10 years old. Saanvi is older than Nisha. How old is Saanvi? (a) 11 (b) 12 (c) 15 (d) not enough info
23. 23.🧩 Enough evidence or not? “We tested 20 seeds, and 18 of them sprouted.” (a) not enough evidence (b) enough evidence
24. 24.🧩 Tara is 11 years old. Ananya is 2 years older than Tara. How old is Ananya? (a) not enough info (b) 2 (c) 14 (d) 13
25. 25.🧩 Meera is 11 years old. Arjun is 3 years older than Meera. How old is Arjun? (a) 3 (b) 14 (c) not enough info (d) 15
26. 26.🧩 The film starts at 6 PM. It is a long film. When does it end? (a) 8 PM (b) not enough info (c) 9 PM (d) 7 PM
27. 27.🧩 Enough evidence or not? “A dog barked at me once, so all dogs are mean.” (a) not enough evidence (b) enough evidence
28. 28.🧩 Before solving a word problem, first check… (a) what facts are given (b) the page number (c) your handwriting (d) the colour of ink
29. 29.🧩 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
30. 30.🧩 A box of laddoos has 6 in each row. How many laddoos are in the box? (a) 60 (b) not enough info (c) 12 (d) 6
31. 31.🧩 Aarav bought 2 balls and a water bottle for ₹120 in all. Each ball cost the same. What did one ball cost? (a) ₹60 (b) not enough info (c) ₹120 (d) ₹118
32. 32.🧩 A box of apples has 5 in each row. How many apples are in the box? (a) 50 (b) 5 (c) not enough info (d) 10
33. 33.🧩 Nisha is 12 years old. Tara is older than Nisha. How old is Tara? (a) not enough info (b) 17 (c) 14 (d) 13
34. 34.🧩 Enough evidence or not? “It rained on my birthday once, so it always rains on birthdays.” (a) enough evidence (b) not enough evidence
35. 35.🧩 The film starts at 6 PM and lasts 3 hours. When does it end? (a) 9 PM (b) 6 PM (c) not enough info (d) 10 PM
36. 36.🧩 A box of apples has 9 in each row. How many apples are in the box? (a) 9 (b) 18 (c) 90 (d) not enough info
37. 37.🧩 Enough evidence or not? “One mango in the box was sour, so all the mangoes are sour.” (a) not enough evidence (b) enough evidence
38. 38.🧩 Ishaan bought 3 markers and a lunch box for ₹155 in all. Each marker cost the same. What did one marker cost? (a) ₹51 (b) not enough info (c) ₹152 (d) ₹155
39. 39.🧩 Kabir bought 6 markers for ₹60 in all. Each marker cost the same. What did one marker cost? (a) ₹60 (b) ₹10 (c) ₹15 (d) not enough info
40. 40.True or false: “We measured the plant every day for a month; it grew 9 cm.” does not give enough evidence. (a) True (b) False

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