Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 33 · 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.🧩 Meera bought 2 markers and a cap for ₹110 in all. Each marker cost the same. What did one marker cost? (a) ₹108 (b) not enough info (c) ₹55 (d) ₹110
2. 2.🧩 Ananya bought 2 markers for ₹80 in all. Each marker cost the same. What did one marker cost? (a) ₹45 (b) not enough info (c) ₹40 (d) ₹80
3. 3.🧩 Kabir bought 6 markers for ₹180 in all. Each marker cost the same. What did one marker cost? (a) ₹180 (b) ₹35 (c) ₹30 (d) not enough info
4. 4.🧩 A box has 7 rows of guavas, with 9 in each row. How many guavas are in the box? (a) 63 (b) 72 (c) not enough info (d) 16
5. 5.True or false: “It rained on my birthday once, so it always rains on birthdays.” does not give enough evidence. (a) True (b) False
6. 6.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
7. 7.🧩 The film starts at 4 PM. It is a long film. When does it end? (a) 7 PM (b) 6 PM (c) 5 PM (d) not enough info
8. 8.🧩 Ishaan is 8 years old. Kabir is 4 years older than Ishaan. How old is Kabir? (a) not enough info (b) 13 (c) 12 (d) 4
9. 9.🧩 Diya bought 4 pens for ₹60 in all. Each pen cost the same. What did one pen cost? (a) ₹20 (b) ₹15 (c) ₹60 (d) not enough info
10. 10.🧩 Enough evidence or not? “A dog barked at me once, so all dogs are mean.” (a) enough evidence (b) not enough evidence
11. 11.True or false: “We measured the plant every day for a month; it grew 9 cm.” gives enough evidence. (a) True (b) False
12. 12.True or false: “We checked all 40 mangoes in the box; every one was ripe.” does not give enough evidence. (a) True (b) False
13. 13.🧩 Enough evidence or not? “It rained on my birthday once, so it always rains on birthdays.” (a) enough evidence (b) not enough evidence
14. 14.True or false: “We tested 20 seeds, and 18 of them sprouted.” gives enough evidence. (a) True (b) False
15. 15.🧩 Enough evidence or not? “We tested 20 seeds, and 18 of them sprouted.” (a) not enough evidence (b) enough evidence
16. 16.🧩 The film starts at 6 PM. It is a long film. When does it end? (a) not enough info (b) 8 PM (c) 7 PM (d) 9 PM
17. 17.True or false: “We tried the new route for 10 days, and it was faster every day.” gives enough evidence. (a) True (b) False
18. 18.🧩 The film starts at 3 PM. It is a long film. When does it end? (a) not enough info (b) 4 PM (c) 5 PM (d) 6 PM
19. 19.🧩 Before solving a word problem, first check… (a) the page number (b) your handwriting (c) what facts are given (d) the colour of ink
20. 20.🧩 The film starts at 2 PM. It is a long film. When does it end? (a) 3 PM (b) 4 PM (c) not enough info (d) 5 PM
21. 21.🧩 A box has 8 rows of apples, with 6 in each row. How many apples are in the box? (a) 14 (b) 48 (c) not enough info (d) 54
22. 22.🧩 Arjun is 7 years old. Rohan is 6 years older than Arjun. How old is Rohan? (a) 6 (b) not enough info (c) 14 (d) 13
23. 23.🧩 Ananya bought 5 kites for ₹250 in all. Each kite cost the same. What did one kite cost? (a) ₹50 (b) ₹55 (c) not enough info (d) ₹250
24. 24.True or false: “My friend didn’t like the book, so the book is bad for everyone.” gives enough evidence. (a) True (b) False
25. 25.🧩 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
26. 26.🧩 Kabir is 7 years old. Arjun is older than Kabir. How old is Arjun? (a) 12 (b) not enough info (c) 8 (d) 9
27. 27.True or false: “One student said the canteen food was cold, so it is always cold.” does not give enough evidence. (a) True (b) False
28. 28.🧩 The film starts at 4 PM and lasts 1 hour. When does it end? (a) 4 PM (b) 5 PM (c) not enough info (d) 6 PM
29. 29.🧩 The film starts at 5 PM and lasts 3 hours. When does it end? (a) not enough info (b) 5 PM (c) 9 PM (d) 8 PM
30. 30.🧩 Enough evidence or not? “We checked all 40 mangoes in the box; every one was ripe.” (a) not enough evidence (b) enough evidence
31. 31.True or false: “A dog barked at me once, so all dogs are mean.” gives enough evidence. (a) False (b) True
32. 32.🧩 Enough evidence or not? “We asked all 30 classmates; 25 chose the zoo trip.” (a) enough evidence (b) not enough evidence
33. 33.🧩 Enough evidence or not? “One student said the canteen food was cold, so it is always cold.” (a) not enough evidence (b) enough evidence
34. 34.🧩 Vihaan is 6 years old. Tara is older than Vihaan. How old is Tara? (a) not enough info (b) 7 (c) 11 (d) 8
35. 35.🧩 A box of oranges has 4 in each row. How many oranges are in the box? (a) 4 (b) 8 (c) not enough info (d) 40
36. 36.🧩 Arjun bought 4 pens for ₹60 in all. Each pen cost the same. What did one pen cost? (a) ₹20 (b) not enough info (c) ₹60 (d) ₹15
37. 37.True or false: “A dog barked at me once, so all dogs are mean.” does not give enough evidence. (a) False (b) True
38. 38.True or false: “One mango in the box was sour, so all the mangoes are sour.” does not give enough evidence. (a) False (b) True
39. 39.🐕 One dog barked at you. What is the fair conclusion? (a) dogs hate you (b) never see dogs (c) that one dog barked (d) all dogs are mean
40. 40.📝 What does “evidence” mean? (a) a rumour (b) facts that support it (c) a guess (d) a loud opinion

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