Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 278 · 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.🧩 Aarav bought 4 kites and a lunch box for ₹200 in all. Each kite cost the same. What did one kite cost? (a) not enough info (b) ₹50 (c) ₹200 (d) ₹196
2. 2.🧩 A box has 6 rows of mangoes, with 8 in each row. How many mangoes are in the box? (a) 48 (b) 14 (c) 56 (d) not enough info
3. 3.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
4. 4.🧩 Saanvi bought 6 pens and a water bottle for ₹380 in all. Each pen cost the same. What did one pen cost? (a) ₹380 (b) ₹63 (c) ₹374 (d) not enough info
5. 5.True or false: “We tested 20 seeds, and 18 of them sprouted.” gives enough evidence. (a) True (b) False
6. 6.🧩 The film starts at 5 PM and lasts 3 hours. When does it end? (a) 9 PM (b) 8 PM (c) 5 PM (d) not enough info
7. 7.🧩 Enough evidence or not? “One student said the canteen food was cold, so it is always cold.” (a) enough evidence (b) not enough evidence
8. 8.🧩 Enough evidence or not? “One mango in the box was sour, so all the mangoes are sour.” (a) enough evidence (b) not enough evidence
9. 9.🧩 Before solving a word problem, first check… (a) your handwriting (b) what facts are given (c) the colour of ink (d) the page number
10. 10.🧩 Enough evidence or not? “We measured the plant every day for a month; it grew 9 cm.” (a) not enough evidence (b) enough evidence
11. 11.🥭 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) no, check more (c) yes, it is certain (d) no mango is sweet
12. 12.📊 Which gives the best evidence about the class’s favourite game? (a) guessing (b) asking your pet (c) asking the whole class (d) asking one friend
13. 13.🧩 Enough evidence or not? “We tested 20 seeds, and 18 of them sprouted.” (a) not enough evidence (b) enough evidence
14. 14.🐕 One dog barked at you. What is the fair conclusion? (a) all dogs are mean (b) dogs hate you (c) that one dog barked (d) never see dogs
15. 15.🧩 Meera is 10 years old. Kabir is 6 years older than Meera. How old is Kabir? (a) 17 (b) 16 (c) 6 (d) not enough info
16. 16.🧩 The film starts at 3 PM. It is a long film. When does it end? (a) not enough info (b) 4 PM (c) 6 PM (d) 5 PM
17. 17.🧩 Kabir is 9 years old. Saanvi is older than Kabir. How old is Saanvi? (a) not enough info (b) 14 (c) 10 (d) 11
18. 18.🧩 Rohan bought 2 pens and a bag for ₹120 in all. Each pen cost the same. What did one pen cost? (a) ₹120 (b) ₹118 (c) ₹60 (d) not enough info
19. 19.🧩 Kabir is 12 years old. Nisha is older than Kabir. How old is Nisha? (a) 14 (b) 17 (c) not enough info (d) 13
20. 20.🧩 Enough evidence or not? “We checked all 40 mangoes in the box; every one was ripe.” (a) enough evidence (b) not enough evidence
21. 21.True or false: “We checked all 40 mangoes in the box; every one was ripe.” does not give enough evidence. (a) True (b) False
22. 22.True or false: “We tried the new route for 10 days, and it was faster every day.” gives enough evidence. (a) False (b) True
23. 23.🧩 The film starts at 4 PM. It is a long film. When does it end? (a) 6 PM (b) not enough info (c) 5 PM (d) 7 PM
24. 24.🧩 Diya is 10 years old. Vihaan is 5 years older than Diya. How old is Vihaan? (a) not enough info (b) 5 (c) 15 (d) 16
25. 25.🧩 The film starts at 2 PM and lasts 3 hours. When does it end? (a) 2 PM (b) 6 PM (c) 5 PM (d) not enough info
26. 26.True or false: “It rained on my birthday once, so it always rains on birthdays.” gives enough evidence. (a) True (b) False
27. 27.🧩 A box has 6 rows of laddoos, with 9 in each row. How many laddoos are in the box? (a) 15 (b) 63 (c) not enough info (d) 54
28. 28.🧩 Vihaan is 8 years old. Nisha is older than Vihaan. How old is Nisha? (a) 13 (b) 10 (c) 9 (d) not enough info
29. 29.🧩 Enough evidence or not? “It rained on my birthday once, so it always rains on birthdays.” (a) enough evidence (b) not enough evidence
30. 30.🧩 A box has 3 rows of apples, with 7 in each row. How many apples are in the box? (a) 28 (b) not enough info (c) 21 (d) 10
31. 31.🧩 Meera bought 2 notebooks and a bag for ₹80 in all. Each notebook cost the same. What did one notebook cost? (a) ₹80 (b) ₹78 (c) ₹40 (d) not enough info
32. 32.🧩 The film starts at 5 PM. It is a long film. When does it end? (a) 7 PM (b) not enough info (c) 6 PM (d) 8 PM
33. 33.True or false: “A dog barked at me once, so all dogs are mean.” gives enough evidence. (a) False (b) True
34. 34.🧩 A box of laddoos has 6 in each row. How many laddoos are in the box? (a) not enough info (b) 12 (c) 6 (d) 60
35. 35.🧩 A box of mangoes has 9 in each row. How many mangoes are in the box? (a) not enough info (b) 18 (c) 9 (d) 90
36. 36.🧩 Nisha bought 5 markers for ₹150 in all. Each marker cost the same. What did one marker cost? (a) not enough info (b) ₹35 (c) ₹150 (d) ₹30
37. 37.🧩 Diya bought 4 notebooks for ₹60 in all. Each notebook cost the same. What did one notebook cost? (a) ₹60 (b) ₹15 (c) not enough info (d) ₹20
38. 38.True or false: “One mango in the box was sour, so all the mangoes are sour.” does not give enough evidence. (a) True (b) False
39. 39.🧩 Meera is 6 years old. Aarav is 5 years older than Meera. How old is Aarav? (a) 5 (b) 12 (c) not enough info (d) 11
40. 40.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

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