Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 569 · 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.📝 What does “evidence” mean? (a) a guess (b) a rumour (c) a loud opinion (d) facts that support it
2. 2.True or false: “We tried the new route for 10 days, and it was faster every day.” gives enough evidence. (a) True (b) False
3. 3.🧩 Enough evidence or not? “We asked all 30 classmates; 25 chose the zoo trip.” (a) enough evidence (b) not enough evidence
4. 4.🧩 Kabir bought 4 notebooks and a lunch box for ₹100 in all. Each notebook cost the same. What did one notebook cost? (a) ₹100 (b) not enough info (c) ₹96 (d) ₹25
5. 5.🧩 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
6. 6.🧩 Meera is 6 years old. Aarav is 3 years older than Meera. How old is Aarav? (a) 10 (b) not enough info (c) 9 (d) 3
7. 7.🧩 Enough evidence or not? “One student said the canteen food was cold, so it is always cold.” (a) not enough evidence (b) enough evidence
8. 8.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
9. 9.True or false: “We tested 20 seeds, and 18 of them sprouted.” does not give enough evidence. (a) False (b) True
10. 10.True or false: “We tested 20 seeds, and 18 of them sprouted.” gives enough evidence. (a) False (b) True
11. 11.🧩 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
12. 12.True or false: “We checked all 40 mangoes in the box; every one was ripe.” gives enough evidence. (a) True (b) False
13. 13.🧩 Before solving a word problem, first check… (a) what facts are given (b) the colour of ink (c) the page number (d) your handwriting
14. 14.True or false: “One mango in the box was sour, so all the mangoes are sour.” gives enough evidence. (a) False (b) True
15. 15.🧩 A box has 4 rows of oranges, with 6 in each row. How many oranges are in the box? (a) 10 (b) not enough info (c) 24 (d) 30
16. 16.🧩 A box has 7 rows of eggs, with 8 in each row. How many eggs are in the box? (a) 64 (b) 15 (c) not enough info (d) 56
17. 17.🧩 Aarav bought 5 kites for ₹75 in all. Each kite cost the same. What did one kite cost? (a) ₹75 (b) not enough info (c) ₹20 (d) ₹15
18. 18.🧩 Enough evidence or not? “We checked all 40 mangoes in the box; every one was ripe.” (a) enough evidence (b) not enough evidence
19. 19.🧩 Kabir is 6 years old. Ananya is 6 years older than Kabir. How old is Ananya? (a) not enough info (b) 13 (c) 12 (d) 6
20. 20.🧩 The film starts at 2 PM and lasts 3 hours. When does it end? (a) 6 PM (b) 5 PM (c) 2 PM (d) not enough info
21. 21.🧩 Enough evidence or not? “We tested 20 seeds, and 18 of them sprouted.” (a) enough evidence (b) not enough evidence
22. 22.True or false: “One student said the canteen food was cold, so it is always cold.” gives enough evidence. (a) True (b) False
23. 23.🐕 One dog barked at you. What is the fair conclusion? (a) never see dogs (b) that one dog barked (c) all dogs are mean (d) dogs hate you
24. 24.🧩 A box of laddoos has 6 in each row. How many laddoos are in the box? (a) 60 (b) 12 (c) 6 (d) not enough info
25. 25.🧩 A box has 7 rows of eggs, with 9 in each row. How many eggs are in the box? (a) not enough info (b) 72 (c) 63 (d) 16
26. 26.True or false: “My friend didn’t like the book, so the book is bad for everyone.” gives enough evidence. (a) False (b) True
27. 27.🧩 A box of apples has 4 in each row. How many apples are in the box? (a) 4 (b) 40 (c) 8 (d) not enough info
28. 28.📊 Which gives the best evidence about the class’s favourite game? (a) asking one friend (b) asking your pet (c) asking the whole class (d) guessing
29. 29.🧩 Arjun is 8 years old. Ishaan is older than Arjun. How old is Ishaan? (a) 10 (b) not enough info (c) 13 (d) 9
30. 30.🧩 Enough evidence or not? “One mango in the box was sour, so all the mangoes are sour.” (a) not enough evidence (b) enough evidence
31. 31.🧩 A box has 8 rows of guavas, with 5 in each row. How many guavas are in the box? (a) not enough info (b) 40 (c) 13 (d) 45
32. 32.True or false: “A dog barked at me once, so all dogs are mean.” gives enough evidence. (a) False (b) True
33. 33.True or false: “My friend didn’t like the book, so the book is bad for everyone.” does not give enough evidence. (a) False (b) True
34. 34.🧩 A box of apples has 9 in each row. How many apples are in the box? (a) 90 (b) not enough info (c) 9 (d) 18
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.🧩 Kabir is 11 years old. Ananya is 9 years older than Kabir. How old is Ananya? (a) 9 (b) 20 (c) not enough info (d) 21
37. 37.🧩 Ishaan bought 2 kites for ₹60 in all. Each kite cost the same. What did one kite cost? (a) ₹60 (b) not enough info (c) ₹30 (d) ₹35
38. 38.🧩 Vihaan is 8 years old. Rohan is 2 years older than Vihaan. How old is Rohan? (a) not enough info (b) 11 (c) 10 (d) 2
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.🧩 The film starts at 6 PM and lasts 1 hour. When does it end? (a) 8 PM (b) 7 PM (c) 6 PM (d) not enough info

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