Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 176 · 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 loud opinion (b) a rumour (c) facts that support it (d) a guess
2. 2.🧩 Saanvi bought 4 markers for ₹40 in all. Each marker cost the same. What did one marker cost? (a) ₹15 (b) not enough info (c) ₹10 (d) ₹40
3. 3.True or false: “We tried the new route for 10 days, and it was faster every day.” gives enough evidence. (a) True (b) False
4. 4.🧩 A box has 4 rows of apples, with 6 in each row. How many apples are in the box? (a) 30 (b) not enough info (c) 10 (d) 24
5. 5.🧩 A box of guavas has 9 in each row. How many guavas are in the box? (a) 9 (b) 90 (c) not enough info (d) 18
6. 6.True or false: “We measured the plant every day for a month; it grew 9 cm.” does not give enough evidence. (a) False (b) True
7. 7.🧩 A box has 3 rows of oranges, with 4 in each row. How many oranges are in the box? (a) 16 (b) not enough info (c) 7 (d) 12
8. 8.True or false: “A dog barked at me once, so all dogs are mean.” gives enough evidence. (a) True (b) False
9. 9.🧩 Enough evidence or not? “My friend didn’t like the book, so the book is bad for everyone.” (a) enough evidence (b) not enough evidence
10. 10.True or false: “We asked all 30 classmates; 25 chose the zoo trip.” gives enough evidence. (a) False (b) True
11. 11.True or false: “One student said the canteen food was cold, so it is always cold.” gives enough evidence. (a) True (b) False
12. 12.🧩 Enough evidence or not? “We checked all 40 mangoes in the box; every one was ripe.” (a) enough evidence (b) not enough evidence
13. 13.🧩 The film starts at 2 PM. It is a long film. When does it end? (a) 3 PM (b) 5 PM (c) not enough info (d) 4 PM
14. 14.🧩 A box has 4 rows of mangoes, with 5 in each row. How many mangoes are in the box? (a) 9 (b) 25 (c) not enough info (d) 20
15. 15.True or false: “A dog barked at me once, so all dogs are mean.” does not give enough evidence. (a) False (b) True
16. 16.🧩 Meera bought 2 balls for ₹90 in all. Each ball cost the same. What did one ball cost? (a) ₹90 (b) ₹45 (c) ₹50 (d) not enough info
17. 17.🧩 Ananya bought 4 kites for ₹40 in all. Each kite cost the same. What did one kite cost? (a) not enough info (b) ₹15 (c) ₹10 (d) ₹40
18. 18.🧩 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
19. 19.📊 Which gives the best evidence about the class’s favourite game? (a) asking one friend (b) asking your pet (c) guessing (d) asking the whole class
20. 20.🧩 Tara bought 3 notebooks and a lunch box for ₹105 in all. Each notebook cost the same. What did one notebook cost? (a) not enough info (b) ₹35 (c) ₹105 (d) ₹102
21. 21.🧩 Enough evidence or not? “One student said the canteen food was cold, so it is always cold.” (a) enough evidence (b) not enough evidence
22. 22.🧩 Before solving a word problem, first check… (a) the page number (b) what facts are given (c) the colour of ink (d) your handwriting
23. 23.True or false: “We measured the plant every day for a month; it grew 9 cm.” gives enough evidence. (a) True (b) False
24. 24.True or false: “It rained on my birthday once, so it always rains on birthdays.” does not give enough evidence. (a) False (b) True
25. 25.🧩 Meera bought 2 pens for ₹50 in all. Each pen cost the same. What did one pen cost? (a) not enough info (b) ₹25 (c) ₹30 (d) ₹50
26. 26.🧩 Enough evidence or not? “We tested 20 seeds, and 18 of them sprouted.” (a) enough evidence (b) not enough evidence
27. 27.🧩 Kabir is 8 years old. Meera is 5 years older than Kabir. How old is Meera? (a) 5 (b) not enough info (c) 13 (d) 14
28. 28.🧩 The film starts at 3 PM and lasts 3 hours. When does it end? (a) 7 PM (b) 3 PM (c) not enough info (d) 6 PM
29. 29.🧩 Enough evidence or not? “We measured the plant every day for a month; it grew 9 cm.” (a) not enough evidence (b) enough evidence
30. 30.🧩 Arjun is 6 years old. Ishaan is 6 years older than Arjun. How old is Ishaan? (a) 6 (b) 13 (c) 12 (d) not enough info
31. 31.True or false: “It rained on my birthday once, so it always rains on birthdays.” gives enough evidence. (a) True (b) False
32. 32.🧩 A box of mangoes has 4 in each row. How many mangoes are in the box? (a) not enough info (b) 40 (c) 4 (d) 8
33. 33.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
34. 34.🧩 A box has 5 rows of laddoos, with 6 in each row. How many laddoos are in the box? (a) 11 (b) not enough info (c) 30 (d) 36
35. 35.🧩 The film starts at 4 PM and lasts 3 hours. When does it end? (a) 4 PM (b) 7 PM (c) 8 PM (d) not enough info
36. 36.🧩 Enough evidence or not? “One mango in the box was sour, so all the mangoes are sour.” (a) enough evidence (b) not enough evidence
37. 37.🧩 A box has 6 rows of mangoes, with 4 in each row. How many mangoes are in the box? (a) not enough info (b) 10 (c) 28 (d) 24
38. 38.🔬 Why do scientists repeat an experiment? (a) to waste time (b) for fun only (c) to change answers (d) to be sure of results
39. 39.🧩 The film starts at 6 PM and lasts 1 hour. When does it end? (a) not enough info (b) 6 PM (c) 7 PM (d) 8 PM
40. 40.🧩 Rohan is 7 years old. Kabir is older than Rohan. How old is Kabir? (a) 12 (b) 8 (c) 9 (d) not enough info

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