Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 697 · 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.🧩 Ananya is 6 years old. Meera is older than Ananya. How old is Meera? (a) 7 (b) 11 (c) not enough info (d) 8
2. 2.🧩 Tara is 10 years old. Ishaan is older than Tara. How old is Ishaan? (a) 12 (b) 15 (c) 11 (d) not enough info
3. 3.🧩 Enough evidence or not? “One student said the canteen food was cold, so it is always cold.” (a) enough evidence (b) not enough evidence
4. 4.True or false: “One mango in the box was sour, so all the mangoes are sour.” gives enough evidence. (a) False (b) True
5. 5.🧩 Enough evidence or not? “One mango in the box was sour, so all the mangoes are sour.” (a) not enough evidence (b) enough evidence
6. 6.True or false: “One student said the canteen food was cold, so it is always cold.” gives enough evidence. (a) False (b) True
7. 7.🧩 Enough evidence or not? “We asked all 30 classmates; 25 chose the zoo trip.” (a) not enough evidence (b) enough evidence
8. 8.🧩 Enough evidence or not? “We tested 20 seeds, and 18 of them sprouted.” (a) not enough evidence (b) enough evidence
9. 9.True or false: “My friend didn’t like the book, so the book is bad for everyone.” does not give enough evidence. (a) True (b) False
10. 10.True or false: “We tried the new route for 10 days, and it was faster every day.” gives enough evidence. (a) True (b) False
11. 11.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
12. 12.🧩 The film starts at 5 PM and lasts 1 hour. When does it end? (a) 7 PM (b) 5 PM (c) not enough info (d) 6 PM
13. 13.🧩 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
14. 14.🧩 Arjun bought 6 notebooks for ₹300 in all. Each notebook cost the same. What did one notebook cost? (a) ₹300 (b) ₹50 (c) ₹55 (d) not enough info
15. 15.📝 What does “evidence” mean? (a) facts that support it (b) a loud opinion (c) a guess (d) a rumour
16. 16.🧩 Tara bought 2 kites for ₹50 in all. Each kite cost the same. What did one kite cost? (a) ₹50 (b) not enough info (c) ₹30 (d) ₹25
17. 17.🧩 Ishaan bought 3 notebooks for ₹90 in all. Each notebook cost the same. What did one notebook cost? (a) not enough info (b) ₹35 (c) ₹30 (d) ₹90
18. 18.🧩 A box has 4 rows of apples, with 4 in each row. How many apples are in the box? (a) not enough info (b) 16 (c) 20 (d) 8
19. 19.🧩 The film starts at 3 PM and lasts 1 hour. When does it end? (a) 3 PM (b) 5 PM (c) 4 PM (d) not enough info
20. 20.True or false: “We asked all 30 classmates; 25 chose the zoo trip.” does not give enough evidence. (a) True (b) False
21. 21.🐕 One dog barked at you. What is the fair conclusion? (a) never see dogs (b) dogs hate you (c) all dogs are mean (d) that one dog barked
22. 22.📊 Which gives the best evidence about the class’s favourite game? (a) asking the whole class (b) asking your pet (c) guessing (d) asking one friend
23. 23.🧩 Aarav bought 3 notebooks and a cap for ₹110 in all. Each notebook cost the same. What did one notebook cost? (a) ₹110 (b) not enough info (c) ₹107 (d) ₹36
24. 24.🥭 You taste one mango from a box of 50, and it is sweet. Can you be sure all 50 are sweet? (a) yes, mangoes match (b) yes, it is certain (c) no mango is sweet (d) no, check more
25. 25.🧩 Kabir is 11 years old. Ishaan is older than Kabir. How old is Ishaan? (a) 13 (b) not enough info (c) 12 (d) 16
26. 26.🧩 A box has 4 rows of apples, with 6 in each row. How many apples are in the box? (a) 24 (b) not enough info (c) 10 (d) 30
27. 27.🧩 A box has 3 rows of laddoos, with 5 in each row. How many laddoos are in the box? (a) 8 (b) 20 (c) 15 (d) not enough info
28. 28.True or false: “A dog barked at me once, so all dogs are mean.” gives enough evidence. (a) True (b) False
29. 29.🧩 A box has 6 rows of apples, with 7 in each row. How many apples are in the box? (a) 13 (b) not enough info (c) 49 (d) 42
30. 30.🧩 A box has 3 rows of guavas, with 8 in each row. How many guavas are in the box? (a) 24 (b) 32 (c) not enough info (d) 11
31. 31.🧩 Aarav is 9 years old. Saanvi is older than Aarav. How old is Saanvi? (a) 10 (b) 11 (c) 14 (d) not enough info
32. 32.🧩 Saanvi is 6 years old. Ishaan is 7 years older than Saanvi. How old is Ishaan? (a) 13 (b) 7 (c) 14 (d) not enough info
33. 33.🧩 Enough evidence or not? “It rained on my birthday once, so it always rains on birthdays.” (a) not enough evidence (b) enough evidence
34. 34.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
35. 35.🧩 The film starts at 2 PM and lasts 2 hours. When does it end? (a) 2 PM (b) not enough info (c) 4 PM (d) 5 PM
36. 36.🧩 A box of laddoos has 8 in each row. How many laddoos are in the box? (a) not enough info (b) 16 (c) 8 (d) 80
37. 37.🧩 Before solving a word problem, first check… (a) what facts are given (b) the page number (c) the colour of ink (d) your handwriting
38. 38.🧩 A box of eggs has 8 in each row. How many eggs are in the box? (a) not enough info (b) 80 (c) 8 (d) 16
39. 39.🧩 Tara is 7 years old. Aarav is 9 years older than Tara. How old is Aarav? (a) 9 (b) 17 (c) not enough info (d) 16
40. 40.🧩 Aarav is 8 years old. Kabir is 9 years older than Aarav. How old is Kabir? (a) 17 (b) 9 (c) 18 (d) not enough info

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