Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 48 · 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.🧩 Rohan is 6 years old. Meera is older than Rohan. How old is Meera? (a) 7 (b) not enough info (c) 11 (d) 8
2. 2.🧩 The film starts at 5 PM. It is a long film. When does it end? (a) 8 PM (b) not enough info (c) 7 PM (d) 6 PM
3. 3.🧩 A box has 3 rows of laddoos, with 9 in each row. How many laddoos are in the box? (a) not enough info (b) 36 (c) 12 (d) 27
4. 4.🧩 A box has 5 rows of mangoes, with 8 in each row. How many mangoes are in the box? (a) not enough info (b) 13 (c) 48 (d) 40
5. 5.🧩 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
6. 6.🧩 Diya is 10 years old. Rohan is older than Diya. How old is Rohan? (a) 12 (b) 15 (c) 11 (d) not enough info
7. 7.🧩 Enough evidence or not? “We checked all 40 mangoes in the box; every one was ripe.” (a) not enough evidence (b) enough evidence
8. 8.📝 What does “evidence” mean? (a) a loud opinion (b) a rumour (c) facts that support it (d) a guess
9. 9.🧩 Saanvi bought 4 kites and a bag for ₹180 in all. Each kite cost the same. What did one kite cost? (a) ₹45 (b) not enough info (c) ₹176 (d) ₹180
10. 10.True or false: “We checked all 40 mangoes in the box; every one was ripe.” does not give enough evidence. (a) True (b) False
11. 11.📊 Which gives the best evidence about the class’s favourite game? (a) asking your pet (b) asking the whole class (c) asking one friend (d) guessing
12. 12.🧩 Enough evidence or not? “A dog barked at me once, so all dogs are mean.” (a) not enough evidence (b) enough evidence
13. 13.True or false: “My friend didn’t like the book, so the book is bad for everyone.” gives enough evidence. (a) False (b) True
14. 14.🧩 Rohan is 10 years old. Kabir is 2 years older than Rohan. How old is Kabir? (a) 12 (b) 13 (c) not enough info (d) 2
15. 15.🧩 Before solving a word problem, first check… (a) your handwriting (b) the colour of ink (c) the page number (d) what facts are given
16. 16.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
17. 17.🧩 Diya is 9 years old. Meera is older than Diya. How old is Meera? (a) 10 (b) 14 (c) 11 (d) not enough info
18. 18.🧩 Enough evidence or not? “We tested 20 seeds, and 18 of them sprouted.” (a) not enough evidence (b) enough evidence
19. 19.True or false: “We checked all 40 mangoes in the box; every one was ripe.” gives enough evidence. (a) True (b) False
20. 20.🧩 A box of laddoos has 7 in each row. How many laddoos are in the box? (a) 14 (b) 7 (c) 70 (d) not enough info
21. 21.🧩 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
22. 22.🧩 Enough evidence or not? “It rained on my birthday once, so it always rains on birthdays.” (a) not enough evidence (b) enough evidence
23. 23.🧩 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
24. 24.🧩 Meera bought 3 mangoes and a lunch box for ₹115 in all. Each mango cost the same. What did one mango cost? (a) ₹38 (b) ₹112 (c) not enough info (d) ₹115
25. 25.🧩 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
26. 26.🧩 A box of guavas has 4 in each row. How many guavas are in the box? (a) not enough info (b) 8 (c) 4 (d) 40
27. 27.🧩 Ananya bought 6 markers for ₹180 in all. Each marker cost the same. What did one marker cost? (a) ₹180 (b) ₹30 (c) not enough info (d) ₹35
28. 28.True or false: “We asked all 30 classmates; 25 chose the zoo trip.” does not give enough evidence. (a) True (b) False
29. 29.🧩 Meera is 11 years old. Aarav is older than Meera. How old is Aarav? (a) 16 (b) 13 (c) 12 (d) not enough info
30. 30.🧩 Aarav bought 3 mangoes for ₹90 in all. Each mango cost the same. What did one mango cost? (a) ₹30 (b) ₹90 (c) not enough info (d) ₹35
31. 31.True or false: “We measured the plant every day for a month; it grew 9 cm.” gives enough evidence. (a) True (b) False
32. 32.🧩 A box has 7 rows of eggs, with 7 in each row. How many eggs are in the box? (a) not enough info (b) 49 (c) 56 (d) 14
33. 33.🧩 Nisha is 8 years old. Rohan is 2 years older than Nisha. How old is Rohan? (a) not enough info (b) 2 (c) 11 (d) 10
34. 34.🧩 The film starts at 3 PM and lasts 2 hours. When does it end? (a) 6 PM (b) 5 PM (c) not enough info (d) 3 PM
35. 35.🧩 Diya is 6 years old. Saanvi is 7 years older than Diya. How old is Saanvi? (a) not enough info (b) 13 (c) 7 (d) 14
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.🔬 Why do scientists repeat an experiment? (a) for fun only (b) to waste time (c) to be sure of results (d) to change answers
38. 38.🧩 A box has 4 rows of oranges, with 7 in each row. How many oranges are in the box? (a) 28 (b) 11 (c) 35 (d) not enough info
39. 39.🧩 A box has 5 rows of laddoos, with 7 in each row. How many laddoos are in the box? (a) 42 (b) 35 (c) 12 (d) not enough info
40. 40.🧩 Vihaan is 9 years old. Saanvi is 6 years older than Vihaan. How old is Saanvi? (a) 16 (b) 15 (c) not enough info (d) 6

Free critical thinking lessons, practice and worksheets at talentjr.in/critical-thinking-for-kids