Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 940 · 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.” gives enough evidence. (a) False (b) True
2. 2.🧩 Nisha is 10 years old. Saanvi is 7 years older than Nisha. How old is Saanvi? (a) 18 (b) not enough info (c) 7 (d) 17
3. 3.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
4. 4.📊 Which gives the best evidence about the class’s favourite game? (a) guessing (b) asking the whole class (c) asking one friend (d) asking your pet
5. 5.📝 What does “evidence” mean? (a) a loud opinion (b) a rumour (c) facts that support it (d) a guess
6. 6.🧩 The film starts at 4 PM. It is a long film. When does it end? (a) 6 PM (b) 5 PM (c) not enough info (d) 7 PM
7. 7.🧩 The film starts at 2 PM. It is a long film. When does it end? (a) 5 PM (b) not enough info (c) 4 PM (d) 3 PM
8. 8.🧩 The film starts at 3 PM and lasts 3 hours. When does it end? (a) 3 PM (b) not enough info (c) 6 PM (d) 7 PM
9. 9.True or false: “A dog barked at me once, so all dogs are mean.” does not give enough evidence. (a) True (b) False
10. 10.🧩 Arjun bought 2 balls and a cap for ₹160 in all. Each ball cost the same. What did one ball cost? (a) not enough info (b) ₹80 (c) ₹160 (d) ₹158
11. 11.🐕 One dog barked at you. What is the fair conclusion? (a) dogs hate you (b) that one dog barked (c) never see dogs (d) all dogs are mean
12. 12.🧩 Enough evidence or not? “We tried the new route for 10 days, and it was faster every day.” (a) not enough evidence (b) enough evidence
13. 13.🧩 Enough evidence or not? “One student said the canteen food was cold, so it is always cold.” (a) enough evidence (b) not enough evidence
14. 14.True or false: “One student said the canteen food was cold, so it is always cold.” gives enough evidence. (a) True (b) False
15. 15.🧩 The film starts at 2 PM and lasts 3 hours. When does it end? (a) 2 PM (b) 6 PM (c) not enough info (d) 5 PM
16. 16.🧩 The film starts at 3 PM. It is a long film. When does it end? (a) not enough info (b) 5 PM (c) 6 PM (d) 4 PM
17. 17.True or false: “My friend didn’t like the book, so the book is bad for everyone.” gives enough evidence. (a) True (b) False
18. 18.🧩 Enough evidence or not? “We asked all 30 classmates; 25 chose the zoo trip.” (a) not enough evidence (b) enough evidence
19. 19.🧩 Saanvi is 10 years old. Nisha is 4 years older than Saanvi. How old is Nisha? (a) 4 (b) not enough info (c) 14 (d) 15
20. 20.🧩 Enough evidence or not? “A dog barked at me once, so all dogs are mean.” (a) enough evidence (b) not enough evidence
21. 21.🧩 Ishaan bought 4 kites and a cap for ₹140 in all. Each kite cost the same. What did one kite cost? (a) ₹35 (b) ₹140 (c) ₹136 (d) not enough info
22. 22.🧩 Enough evidence or not? “We tested 20 seeds, and 18 of them sprouted.” (a) not enough evidence (b) enough evidence
23. 23.🧩 Aarav bought 2 balls for ₹80 in all. Each ball cost the same. What did one ball cost? (a) ₹45 (b) ₹40 (c) ₹80 (d) not enough info
24. 24.True or false: “We tried the new route for 10 days, and it was faster every day.” does not give enough evidence. (a) False (b) True
25. 25.🧩 A box of mangoes has 8 in each row. How many mangoes are in the box? (a) 8 (b) 16 (c) 80 (d) not enough info
26. 26.🧩 A box has 3 rows of oranges, with 8 in each row. How many oranges are in the box? (a) 11 (b) 32 (c) not enough info (d) 24
27. 27.🧩 Nisha bought 4 pens and a bag for ₹230 in all. Each pen cost the same. What did one pen cost? (a) ₹226 (b) not enough info (c) ₹230 (d) ₹57
28. 28.🧩 A box of apples has 7 in each row. How many apples are in the box? (a) 7 (b) not enough info (c) 14 (d) 70
29. 29.🧩 Before solving a word problem, first check… (a) the colour of ink (b) the page number (c) your handwriting (d) what facts are given
30. 30.🧩 A box has 3 rows of apples, with 7 in each row. How many apples are in the box? (a) 10 (b) 21 (c) not enough info (d) 28
31. 31.True or false: “A dog barked at me once, so all dogs are mean.” gives enough evidence. (a) True (b) False
32. 32.True or false: “One mango in the box was sour, so all the mangoes are sour.” gives enough evidence. (a) False (b) True
33. 33.🧩 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
34. 34.🧩 A box has 7 rows of guavas, with 7 in each row. How many guavas are in the box? (a) 14 (b) not enough info (c) 49 (d) 56
35. 35.🧩 Enough evidence or not? “We measured the plant every day for a month; it grew 9 cm.” (a) enough evidence (b) not enough evidence
36. 36.🧩 A box of apples has 9 in each row. How many apples are in the box? (a) not enough info (b) 90 (c) 9 (d) 18
37. 37.🧩 The film starts at 6 PM and lasts 2 hours. When does it end? (a) 6 PM (b) 8 PM (c) not enough info (d) 9 PM
38. 38.🧩 Enough evidence or not? “One mango in the box was sour, so all the mangoes are sour.” (a) enough evidence (b) not enough evidence
39. 39.🧩 Tara is 8 years old. Vihaan is older than Tara. How old is Vihaan? (a) 9 (b) 10 (c) 13 (d) not enough info
40. 40.🧩 A box has 7 rows of laddoos, with 4 in each row. How many laddoos are in the box? (a) not enough info (b) 32 (c) 11 (d) 28

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