Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 629 · 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.🧩 A box of laddoos has 9 in each row. How many laddoos are in the box? (a) 90 (b) 18 (c) not enough info (d) 9
2. 2.True or false: “We asked all 30 classmates; 25 chose the zoo trip.” does not give enough evidence. (a) False (b) True
3. 3.🧩 A box of mangoes has 5 in each row. How many mangoes are in the box? (a) 10 (b) 5 (c) not enough info (d) 50
4. 4.🧩 The film starts at 3 PM. It is a long film. When does it end? (a) not enough info (b) 6 PM (c) 5 PM (d) 4 PM
5. 5.📊 Which gives the best evidence about the class’s favourite game? (a) asking one friend (b) guessing (c) asking your pet (d) asking the whole class
6. 6.🧩 A box has 4 rows of apples, with 8 in each row. How many apples are in the box? (a) not enough info (b) 12 (c) 40 (d) 32
7. 7.True or false: “We checked all 40 mangoes in the box; every one was ripe.” gives enough evidence. (a) True (b) False
8. 8.🧩 Nisha is 6 years old. Diya is older than Nisha. How old is Diya? (a) 11 (b) not enough info (c) 7 (d) 8
9. 9.True or false: “We tried the new route for 10 days, and it was faster every day.” does not give enough evidence. (a) True (b) False
10. 10.🧩 Enough evidence or not? “We checked all 40 mangoes in the box; every one was ripe.” (a) not enough evidence (b) enough evidence
11. 11.🧩 Diya is 7 years old. Vihaan is older than Diya. How old is Vihaan? (a) 12 (b) not enough info (c) 8 (d) 9
12. 12.🧩 Saanvi is 9 years old. Nisha is 5 years older than Saanvi. How old is Nisha? (a) not enough info (b) 15 (c) 5 (d) 14
13. 13.🧩 Nisha is 8 years old. Kabir is 6 years older than Nisha. How old is Kabir? (a) 15 (b) 6 (c) not enough info (d) 14
14. 14.🧩 A box of guavas has 4 in each row. How many guavas are in the box? (a) 40 (b) 8 (c) not enough info (d) 4
15. 15.True or false: “It rained on my birthday once, so it always rains on birthdays.” does not give enough evidence. (a) False (b) True
16. 16.🧩 Tara bought 6 notebooks and a bag for ₹280 in all. Each notebook cost the same. What did one notebook cost? (a) not enough info (b) ₹46 (c) ₹280 (d) ₹274
17. 17.🧩 The film starts at 4 PM. It is a long film. When does it end? (a) 7 PM (b) 5 PM (c) not enough info (d) 6 PM
18. 18.🧩 Enough evidence or not? “It rained on my birthday once, so it always rains on birthdays.” (a) enough evidence (b) not enough evidence
19. 19.🧩 A box has 3 rows of oranges, with 4 in each row. How many oranges are in the box? (a) 7 (b) 16 (c) not enough info (d) 12
20. 20.True or false: “We checked all 40 mangoes in the box; every one was ripe.” does not give enough evidence. (a) True (b) False
21. 21.🧩 The film starts at 6 PM. It is a long film. When does it end? (a) 7 PM (b) 8 PM (c) not enough info (d) 9 PM
22. 22.🧩 Vihaan is 10 years old. Saanvi is 3 years older than Vihaan. How old is Saanvi? (a) 14 (b) not enough info (c) 13 (d) 3
23. 23.True or false: “One mango in the box was sour, so all the mangoes are sour.” gives enough evidence. (a) False (b) True
24. 24.🧩 Vihaan bought 3 kites and a cap for ₹110 in all. Each kite cost the same. What did one kite cost? (a) not enough info (b) ₹110 (c) ₹107 (d) ₹36
25. 25.🧩 Ananya bought 4 markers for ₹60 in all. Each marker cost the same. What did one marker cost? (a) ₹60 (b) ₹15 (c) ₹20 (d) not enough info
26. 26.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
27. 27.🥭 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, it is certain (c) yes, mangoes match (d) no, check more
28. 28.🧩 Tara is 7 years old. Vihaan is older than Tara. How old is Vihaan? (a) 9 (b) 8 (c) not enough info (d) 12
29. 29.🧩 Rohan is 12 years old. Diya is older than Rohan. How old is Diya? (a) 13 (b) 17 (c) 14 (d) not enough info
30. 30.🧩 Aarav bought 4 mangoes and a cap for ₹220 in all. Each mango cost the same. What did one mango cost? (a) ₹55 (b) ₹220 (c) ₹216 (d) not enough info
31. 31.🧩 Tara bought 5 pens and a bag for ₹305 in all. Each pen cost the same. What did one pen cost? (a) ₹305 (b) not enough info (c) ₹300 (d) ₹61
32. 32.🧩 The film starts at 4 PM and lasts 2 hours. When does it end? (a) 7 PM (b) 6 PM (c) not enough info (d) 4 PM
33. 33.True or false: “It rained on my birthday once, so it always rains on birthdays.” gives enough evidence. (a) True (b) False
34. 34.🧩 The film starts at 2 PM and lasts 3 hours. When does it end? (a) 6 PM (b) 2 PM (c) 5 PM (d) not enough info
35. 35.🧩 Kabir is 8 years old. Tara is older than Kabir. How old is Tara? (a) 13 (b) not enough info (c) 9 (d) 10
36. 36.True or false: “My friend didn’t like the book, so the book is bad for everyone.” gives enough evidence. (a) True (b) False
37. 37.📝 What does “evidence” mean? (a) facts that support it (b) a rumour (c) a loud opinion (d) a guess
38. 38.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
39. 39.🧩 Saanvi is 9 years old. Kabir is 7 years older than Saanvi. How old is Kabir? (a) 17 (b) 16 (c) 7 (d) not enough info
40. 40.True or false: “A dog barked at me once, so all dogs are mean.” gives enough evidence. (a) True (b) False

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