Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 586 · 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 4 PM. It is a long film. When does it end? (a) not enough info (b) 5 PM (c) 6 PM (d) 7 PM
2. 2.🧩 Enough evidence or not? “A dog barked at me once, so all dogs are mean.” (a) enough evidence (b) not enough evidence
3. 3.🧩 Rohan bought 2 pens and a lunch box for ₹130 in all. Each pen cost the same. What did one pen cost? (a) not enough info (b) ₹128 (c) ₹65 (d) ₹130
4. 4.🧩 Vihaan bought 3 mangoes and a bag for ₹155 in all. Each mango cost the same. What did one mango cost? (a) ₹155 (b) ₹51 (c) not enough info (d) ₹152
5. 5.🧩 Enough evidence or not? “It rained on my birthday once, so it always rains on birthdays.” (a) enough evidence (b) not enough evidence
6. 6.🧩 A box has 3 rows of mangoes, with 4 in each row. How many mangoes are in the box? (a) 7 (b) not enough info (c) 16 (d) 12
7. 7.🧩 Tara is 11 years old. Ananya is older than Tara. How old is Ananya? (a) 12 (b) 13 (c) not enough info (d) 16
8. 8.🧩 Kabir is 9 years old. Arjun is 6 years older than Kabir. How old is Arjun? (a) 16 (b) 15 (c) 6 (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) True (b) False
10. 10.🧩 Enough evidence or not? “We asked all 30 classmates; 25 chose the zoo trip.” (a) not enough evidence (b) enough evidence
11. 11.🧩 Before solving a word problem, first check… (a) your handwriting (b) the colour of ink (c) the page number (d) what facts are given
12. 12.🧩 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
13. 13.🧩 Rohan bought 4 mangoes for ₹200 in all. Each mango cost the same. What did one mango cost? (a) ₹50 (b) not enough info (c) ₹55 (d) ₹200
14. 14.🧩 Arjun bought 4 pens for ₹240 in all. Each pen cost the same. What did one pen cost? (a) ₹240 (b) ₹65 (c) not enough info (d) ₹60
15. 15.🧩 Enough evidence or not? “We measured the plant every day for a month; it grew 9 cm.” (a) not enough evidence (b) enough evidence
16. 16.🧩 A box has 7 rows of laddoos, with 4 in each row. How many laddoos are in the box? (a) 11 (b) not enough info (c) 28 (d) 32
17. 17.🥭 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
18. 18.🧩 The film starts at 2 PM. It is a long film. When does it end? (a) 4 PM (b) 3 PM (c) 5 PM (d) not enough info
19. 19.🧩 A box of guavas has 4 in each row. How many guavas are in the box? (a) 40 (b) 4 (c) 8 (d) not enough info
20. 20.🧩 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
21. 21.🧩 A box has 6 rows of laddoos, with 6 in each row. How many laddoos are in the box? (a) 36 (b) not enough info (c) 12 (d) 42
22. 22.🧩 The film starts at 6 PM and lasts 2 hours. When does it end? (a) 8 PM (b) 9 PM (c) 6 PM (d) not enough info
23. 23.🧩 Enough evidence or not? “We checked all 40 mangoes in the box; every one was ripe.” (a) not enough evidence (b) enough evidence
24. 24.🧩 A box of oranges has 4 in each row. How many oranges are in the box? (a) not enough info (b) 40 (c) 4 (d) 8
25. 25.🧩 The film starts at 3 PM and lasts 3 hours. When does it end? (a) not enough info (b) 3 PM (c) 6 PM (d) 7 PM
26. 26.🧩 Meera is 9 years old. Nisha is older than Meera. How old is Nisha? (a) 11 (b) 14 (c) not enough info (d) 10
27. 27.🧩 Aarav is 10 years old. Arjun is 5 years older than Aarav. How old is Arjun? (a) 15 (b) 16 (c) not enough info (d) 5
28. 28.True or false: “We measured the plant every day for a month; it grew 9 cm.” does not give enough evidence. (a) True (b) False
29. 29.True or false: “We measured the plant every day for a month; it grew 9 cm.” gives enough evidence. (a) False (b) True
30. 30.🧩 Enough evidence or not? “One mango in the box was sour, so all the mangoes are sour.” (a) not enough evidence (b) enough evidence
31. 31.True or false: “A dog barked at me once, so all dogs are mean.” gives enough evidence. (a) False (b) True
32. 32.🧩 The film starts at 5 PM. It is a long film. When does it end? (a) 6 PM (b) not enough info (c) 7 PM (d) 8 PM
33. 33.🧩 Enough evidence or not? “We tested 20 seeds, and 18 of them sprouted.” (a) not enough evidence (b) enough evidence
34. 34.True or false: “It rained on my birthday once, so it always rains on birthdays.” gives enough evidence. (a) True (b) False
35. 35.🧩 The film starts at 2 PM and lasts 3 hours. When does it end? (a) 2 PM (b) 6 PM (c) not enough info (d) 5 PM
36. 36.📊 Which gives the best evidence about the class’s favourite game? (a) guessing (b) asking one friend (c) asking your pet (d) asking the whole class
37. 37.🐕 One dog barked at you. What is the fair conclusion? (a) dogs hate you (b) never see dogs (c) all dogs are mean (d) that one dog barked
38. 38.🧩 Vihaan is 8 years old. Saanvi is 8 years older than Vihaan. How old is Saanvi? (a) 8 (b) 16 (c) not enough info (d) 17
39. 39.🧩 A box has 4 rows of oranges, with 5 in each row. How many oranges are in the box? (a) not enough info (b) 25 (c) 20 (d) 9
40. 40.🧩 Vihaan is 8 years old. Meera is older than Vihaan. How old is Meera? (a) 10 (b) 13 (c) 9 (d) not enough info

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