Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 34 · 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 8 years old. Ishaan is older than Ananya. How old is Ishaan? (a) 10 (b) not enough info (c) 13 (d) 9
2. 2.🧩 A box of mangoes has 9 in each row. How many mangoes are in the box? (a) 18 (b) 90 (c) not enough info (d) 9
3. 3.📊 Which gives the best evidence about the class’s favourite game? (a) asking the whole class (b) guessing (c) asking your pet (d) asking one friend
4. 4.🧩 A box of laddoos has 7 in each row. How many laddoos are in the box? (a) 7 (b) 14 (c) 70 (d) not enough info
5. 5.🧩 Enough evidence or not? “We asked all 30 classmates; 25 chose the zoo trip.” (a) not enough evidence (b) enough evidence
6. 6.True or false: “We tried the new route for 10 days, and it was faster every day.” gives enough evidence. (a) True (b) False
7. 7.📝 What does “evidence” mean? (a) facts that support it (b) a loud opinion (c) a rumour (d) a guess
8. 8.🧩 Before solving a word problem, first check… (a) the page number (b) your handwriting (c) what facts are given (d) the colour of ink
9. 9.True or false: “One student said the canteen food was cold, so it is always cold.” does not give enough evidence. (a) True (b) False
10. 10.🧩 The film starts at 3 PM and lasts 1 hour. When does it end? (a) not enough info (b) 5 PM (c) 4 PM (d) 3 PM
11. 11.🧩 Meera bought 3 pens and a bag for ₹120 in all. Each pen cost the same. What did one pen cost? (a) ₹40 (b) ₹117 (c) ₹120 (d) not enough info
12. 12.🧩 Enough evidence or not? “One student said the canteen food was cold, so it is always cold.” (a) enough evidence (b) not enough evidence
13. 13.🧩 A box of laddoos has 8 in each row. How many laddoos are in the box? (a) 16 (b) 8 (c) not enough info (d) 80
14. 14.🧩 Enough evidence or not? “We measured the plant every day for a month; it grew 9 cm.” (a) not enough evidence (b) enough evidence
15. 15.🧩 Enough evidence or not? “It rained on my birthday once, so it always rains on birthdays.” (a) enough evidence (b) not enough evidence
16. 16.True or false: “We measured the plant every day for a month; it grew 9 cm.” gives enough evidence. (a) True (b) False
17. 17.🧩 Tara bought 6 markers for ₹120 in all. Each marker cost the same. What did one marker cost? (a) not enough info (b) ₹20 (c) ₹25 (d) ₹120
18. 18.🧩 The film starts at 6 PM and lasts 3 hours. When does it end? (a) 9 PM (b) 10 PM (c) not enough info (d) 6 PM
19. 19.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
20. 20.🐕 One dog barked at you. What is the fair conclusion? (a) all dogs are mean (b) that one dog barked (c) never see dogs (d) dogs hate you
21. 21.🧩 Nisha is 8 years old. Ananya is 4 years older than Nisha. How old is Ananya? (a) not enough info (b) 4 (c) 13 (d) 12
22. 22.🧩 The film starts at 5 PM and lasts 1 hour. When does it end? (a) 6 PM (b) 5 PM (c) 7 PM (d) not enough info
23. 23.🧩 Enough evidence or not? “A dog barked at me once, so all dogs are mean.” (a) not enough evidence (b) enough evidence
24. 24.🧩 A box has 7 rows of guavas, with 7 in each row. How many guavas are in the box? (a) 14 (b) not enough info (c) 49 (d) 56
25. 25.🧩 The film starts at 2 PM and lasts 1 hour. When does it end? (a) 3 PM (b) 2 PM (c) 4 PM (d) not enough info
26. 26.🧩 The film starts at 5 PM and lasts 3 hours. When does it end? (a) not enough info (b) 8 PM (c) 9 PM (d) 5 PM
27. 27.🧩 A box of guavas has 6 in each row. How many guavas are in the box? (a) not enough info (b) 6 (c) 60 (d) 12
28. 28.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
29. 29.🧩 Nisha bought 3 kites for ₹45 in all. Each kite cost the same. What did one kite cost? (a) not enough info (b) ₹45 (c) ₹15 (d) ₹20
30. 30.🧩 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
31. 31.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
32. 32.🧩 Ishaan is 6 years old. Saanvi is older than Ishaan. How old is Saanvi? (a) 11 (b) not enough info (c) 8 (d) 7
33. 33.🧩 A box of laddoos has 6 in each row. How many laddoos are in the box? (a) 12 (b) not enough info (c) 6 (d) 60
34. 34.🧩 Vihaan bought 2 notebooks and a bag for ₹90 in all. Each notebook cost the same. What did one notebook cost? (a) ₹90 (b) ₹45 (c) not enough info (d) ₹88
35. 35.🧩 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
36. 36.🧩 Saanvi bought 3 mangoes and a bag for ₹200 in all. Each mango cost the same. What did one mango cost? (a) ₹197 (b) ₹66 (c) not enough info (d) ₹200
37. 37.🧩 Tara is 11 years old. Vihaan is 6 years older than Tara. How old is Vihaan? (a) 17 (b) 6 (c) not enough info (d) 18
38. 38.🧩 Rohan bought 5 notebooks for ₹150 in all. Each notebook cost the same. What did one notebook cost? (a) not enough info (b) ₹150 (c) ₹30 (d) ₹35
39. 39.🧩 Enough evidence or not? “One mango in the box was sour, so all the mangoes are sour.” (a) enough evidence (b) not enough evidence
40. 40.🧩 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

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