Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 734 · 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.🧩 The film starts at 2 PM and lasts 3 hours. When does it end? (a) 2 PM (b) 5 PM (c) not enough info (d) 6 PM
2. 2.🧩 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
3. 3.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
4. 4.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
5. 5.🧩 Enough evidence or not? “We asked all 30 classmates; 25 chose the zoo trip.” (a) not enough evidence (b) enough evidence
6. 6.🧩 Ishaan bought 6 mangoes and a cap for ₹120 in all. Each mango cost the same. What did one mango cost? (a) ₹20 (b) ₹114 (c) ₹120 (d) not enough info
7. 7.🧩 Saanvi bought 6 mangoes for ₹300 in all. Each mango cost the same. What did one mango cost? (a) not enough info (b) ₹50 (c) ₹300 (d) ₹55
8. 8.🧩 Nisha bought 5 balls and a bag for ₹245 in all. Each ball cost the same. What did one ball cost? (a) ₹49 (b) ₹240 (c) ₹245 (d) not enough info
9. 9.True or false: “We tried the new route for 10 days, and it was faster every day.” gives enough evidence. (a) False (b) True
10. 10.🧩 Enough evidence or not? “We checked all 40 mangoes in the box; every one was ripe.” (a) enough evidence (b) not enough evidence
11. 11.🧩 A box of apples has 4 in each row. How many apples are in the box? (a) 40 (b) 8 (c) 4 (d) not enough info
12. 12.True or false: “It rained on my birthday once, so it always rains on birthdays.” does not give enough evidence. (a) False (b) True
13. 13.🧩 Enough evidence or not? “A dog barked at me once, so all dogs are mean.” (a) enough evidence (b) not enough evidence
14. 14.📝 What does “evidence” mean? (a) facts that support it (b) a guess (c) a loud opinion (d) a rumour
15. 15.True or false: “One student said the canteen food was cold, so it is always cold.” gives enough evidence. (a) False (b) True
16. 16.🧩 Kabir is 10 years old. Diya is 3 years older than Kabir. How old is Diya? (a) 3 (b) 14 (c) 13 (d) not enough info
17. 17.🧩 A box of laddoos has 8 in each row. How many laddoos are in the box? (a) 8 (b) 80 (c) not enough info (d) 16
18. 18.🧩 Enough evidence or not? “It rained on my birthday once, so it always rains on birthdays.” (a) not enough evidence (b) enough evidence
19. 19.🧩 The film starts at 6 PM. It is a long film. When does it end? (a) 8 PM (b) 9 PM (c) 7 PM (d) not enough info
20. 20.🥭 You taste one mango from a box of 50, and it is sweet. Can you be sure all 50 are sweet? (a) no mango is sweet (b) yes, mangoes match (c) yes, it is certain (d) no, check more
21. 21.True or false: “A dog barked at me once, so all dogs are mean.” does not give enough evidence. (a) False (b) True
22. 22.🧩 A box of oranges has 9 in each row. How many oranges are in the box? (a) 9 (b) 90 (c) not enough info (d) 18
23. 23.🧩 Tara bought 2 balls and a lunch box for ₹100 in all. Each ball cost the same. What did one ball cost? (a) ₹100 (b) ₹98 (c) not enough info (d) ₹50
24. 24.🧩 Diya is 7 years old. Aarav is 8 years older than Diya. How old is Aarav? (a) 8 (b) 16 (c) not enough info (d) 15
25. 25.🧩 Saanvi is 9 years old. Kabir is 4 years older than Saanvi. How old is Kabir? (a) not enough info (b) 14 (c) 13 (d) 4
26. 26.🧩 The film starts at 4 PM. It is a long film. When does it end? (a) not enough info (b) 7 PM (c) 5 PM (d) 6 PM
27. 27.🧩 The film starts at 6 PM and lasts 2 hours. When does it end? (a) 9 PM (b) 6 PM (c) not enough info (d) 8 PM
28. 28.🧩 Nisha bought 2 pens and a lunch box for ₹160 in all. Each pen cost the same. What did one pen cost? (a) ₹160 (b) not enough info (c) ₹80 (d) ₹158
29. 29.🧩 A box has 8 rows of eggs, with 7 in each row. How many eggs are in the box? (a) 63 (b) not enough info (c) 56 (d) 15
30. 30.🧩 Before solving a word problem, first check… (a) the colour of ink (b) what facts are given (c) your handwriting (d) the page number
31. 31.🧩 A box has 3 rows of apples, with 6 in each row. How many apples are in the box? (a) 9 (b) 24 (c) not enough info (d) 18
32. 32.True or false: “My friend didn’t like the book, so the book is bad for everyone.” gives enough evidence. (a) False (b) True
33. 33.🧩 Nisha bought 6 markers and a water bottle for ₹130 in all. Each marker cost the same. What did one marker cost? (a) ₹130 (b) not enough info (c) ₹124 (d) ₹21
34. 34.🧩 Kabir is 11 years old. Nisha is 2 years older than Kabir. How old is Nisha? (a) not enough info (b) 13 (c) 14 (d) 2
35. 35.🧩 A box of laddoos has 5 in each row. How many laddoos are in the box? (a) 50 (b) 10 (c) 5 (d) not enough info
36. 36.🧩 A box of guavas has 6 in each row. How many guavas are in the box? (a) 60 (b) 12 (c) not enough info (d) 6
37. 37.🧩 Kabir is 10 years old. Aarav is 8 years older than Kabir. How old is Aarav? (a) 8 (b) 19 (c) not enough info (d) 18
38. 38.📊 Which gives the best evidence about the class’s favourite game? (a) asking your pet (b) guessing (c) asking the whole class (d) asking one friend
39. 39.🧩 A box has 8 rows of guavas, with 5 in each row. How many guavas are in the box? (a) 45 (b) 13 (c) not enough info (d) 40
40. 40.🧩 The film starts at 5 PM. It is a long film. When does it end? (a) not enough info (b) 8 PM (c) 6 PM (d) 7 PM

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