Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 596 · 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.🧩 Enough evidence or not? “We tested 20 seeds, and 18 of them sprouted.” (a) not enough evidence (b) enough evidence
2. 2.🧩 A box of guavas has 8 in each row. How many guavas are in the box? (a) 16 (b) 8 (c) not enough info (d) 80
3. 3.🧩 The film starts at 6 PM. It is a long film. When does it end? (a) not enough info (b) 9 PM (c) 7 PM (d) 8 PM
4. 4.🧩 Tara is 11 years old. Ishaan is older than Tara. How old is Ishaan? (a) 16 (b) 13 (c) not enough info (d) 12
5. 5.True or false: “We measured the plant every day for a month; it grew 9 cm.” gives enough evidence. (a) True (b) False
6. 6.🧩 The film starts at 2 PM. It is a long film. When does it end? (a) 4 PM (b) not enough info (c) 5 PM (d) 3 PM
7. 7.📊 Which gives the best evidence about the class’s favourite game? (a) asking your pet (b) asking the whole class (c) guessing (d) asking one friend
8. 8.🧩 Enough evidence or not? “We checked all 40 mangoes in the box; every one was ripe.” (a) not enough evidence (b) enough evidence
9. 9.True or false: “It rained on my birthday once, so it always rains on birthdays.” does not give enough evidence. (a) False (b) True
10. 10.🧩 The film starts at 4 PM and lasts 1 hour. When does it end? (a) 6 PM (b) 5 PM (c) not enough info (d) 4 PM
11. 11.🧩 A box has 4 rows of mangoes, with 8 in each row. How many mangoes are in the box? (a) 32 (b) 12 (c) 40 (d) not enough info
12. 12.True or false: “We checked all 40 mangoes in the box; every one was ripe.” gives enough evidence. (a) True (b) False
13. 13.🥭 You taste one mango from a box of 50, and it is sweet. Can you be sure all 50 are sweet? (a) yes, it is certain (b) no mango is sweet (c) no, check more (d) yes, mangoes match
14. 14.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
15. 15.📝 What does “evidence” mean? (a) a rumour (b) a loud opinion (c) facts that support it (d) a guess
16. 16.True or false: “We tested 20 seeds, and 18 of them sprouted.” does not give enough evidence. (a) True (b) False
17. 17.🧩 The film starts at 4 PM. It is a long film. When does it end? (a) 5 PM (b) 6 PM (c) 7 PM (d) not enough info
18. 18.🧩 A box has 4 rows of apples, with 4 in each row. How many apples are in the box? (a) 16 (b) 20 (c) 8 (d) not enough info
19. 19.🧩 The film starts at 6 PM and lasts 2 hours. When does it end? (a) 8 PM (b) 6 PM (c) not enough info (d) 9 PM
20. 20.🧩 Meera bought 6 kites for ₹360 in all. Each kite cost the same. What did one kite cost? (a) ₹360 (b) not enough info (c) ₹65 (d) ₹60
21. 21.True or false: “One mango in the box was sour, so all the mangoes are sour.” gives enough evidence. (a) False (b) True
22. 22.🧩 The film starts at 3 PM. It is a long film. When does it end? (a) 5 PM (b) 6 PM (c) 4 PM (d) not enough info
23. 23.🧩 The film starts at 2 PM and lasts 3 hours. When does it end? (a) not enough info (b) 2 PM (c) 5 PM (d) 6 PM
24. 24.🧩 Enough evidence or not? “A dog barked at me once, so all dogs are mean.” (a) not enough evidence (b) enough evidence
25. 25.True or false: “We asked all 30 classmates; 25 chose the zoo trip.” gives enough evidence. (a) True (b) False
26. 26.🧩 A box has 4 rows of oranges, with 7 in each row. How many oranges are in the box? (a) not enough info (b) 28 (c) 11 (d) 35
27. 27.🧩 Before solving a word problem, first check… (a) your handwriting (b) what facts are given (c) the page number (d) the colour of ink
28. 28.🧩 Rohan bought 4 notebooks for ₹120 in all. Each notebook cost the same. What did one notebook cost? (a) ₹120 (b) not enough info (c) ₹35 (d) ₹30
29. 29.🧩 A box has 5 rows of eggs, with 4 in each row. How many eggs are in the box? (a) not enough info (b) 9 (c) 24 (d) 20
30. 30.🧩 Enough evidence or not? “We measured the plant every day for a month; it grew 9 cm.” (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) True (b) False
32. 32.🧩 The film starts at 6 PM and lasts 1 hour. When does it end? (a) 6 PM (b) 8 PM (c) 7 PM (d) not enough info
33. 33.🧩 A box of guavas has 5 in each row. How many guavas are in the box? (a) 50 (b) 5 (c) 10 (d) not enough info
34. 34.🧩 Ananya is 7 years old. Meera is older than Ananya. How old is Meera? (a) 9 (b) 12 (c) not enough info (d) 8
35. 35.🧩 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
36. 36.🧩 Enough evidence or not? “One mango in the box was sour, so all the mangoes are sour.” (a) not enough evidence (b) enough evidence
37. 37.🧩 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
38. 38.🧩 A box of laddoos has 8 in each row. How many laddoos are in the box? (a) 8 (b) 80 (c) not enough info (d) 16
39. 39.🧩 Saanvi bought 3 mangoes and a bag for ₹80 in all. Each mango cost the same. What did one mango cost? (a) not enough info (b) ₹77 (c) ₹26 (d) ₹80
40. 40.🧩 Enough evidence or not? “One student said the canteen food was cold, so it is always cold.” (a) enough evidence (b) not enough evidence

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