Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 252 · 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.📊 Which gives the best evidence about the class’s favourite game? (a) asking one friend (b) asking your pet (c) asking the whole class (d) guessing
2. 2.🧩 Ananya bought 2 pens for ₹20 in all. Each pen cost the same. What did one pen cost? (a) ₹15 (b) not enough info (c) ₹10 (d) ₹20
3. 3.🧩 A box of guavas has 8 in each row. How many guavas are in the box? (a) not enough info (b) 80 (c) 16 (d) 8
4. 4.🧩 Meera is 12 years old. Diya is older than Meera. How old is Diya? (a) 17 (b) 14 (c) not enough info (d) 13
5. 5.🧩 Enough evidence or not? “We tried the new route for 10 days, and it was faster every day.” (a) not enough evidence (b) enough evidence
6. 6.🧩 Meera bought 6 markers and a bag for ₹130 in all. Each marker cost the same. What did one marker cost? (a) ₹130 (b) not enough info (c) ₹21 (d) ₹124
7. 7.🧩 Tara is 11 years old. Nisha is 6 years older than Tara. How old is Nisha? (a) 17 (b) 6 (c) not enough info (d) 18
8. 8.🧩 Ishaan bought 6 kites for ₹60 in all. Each kite cost the same. What did one kite cost? (a) ₹15 (b) ₹60 (c) not enough info (d) ₹10
9. 9.True or false: “My friend didn’t like the book, so the book is bad for everyone.” gives enough evidence. (a) True (b) False
10. 10.True or false: “We asked all 30 classmates; 25 chose the zoo trip.” does not give enough evidence. (a) True (b) False
11. 11.🧩 Enough evidence or not? “One student said the canteen food was cold, so it is always cold.” (a) not enough evidence (b) enough evidence
12. 12.🧩 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
13. 13.🧩 A box of apples has 7 in each row. How many apples are in the box? (a) not enough info (b) 7 (c) 70 (d) 14
14. 14.True or false: “It rained on my birthday once, so it always rains on birthdays.” gives enough evidence. (a) True (b) False
15. 15.🧩 A box of apples has 9 in each row. How many apples are in the box? (a) not enough info (b) 18 (c) 9 (d) 90
16. 16.🧩 Enough evidence or not? “One mango in the box was sour, so all the mangoes are sour.” (a) enough evidence (b) not enough evidence
17. 17.🧩 Enough evidence or not? “We measured the plant every day for a month; it grew 9 cm.” (a) enough evidence (b) not enough evidence
18. 18.🧩 The film starts at 2 PM and lasts 3 hours. When does it end? (a) 6 PM (b) 2 PM (c) 5 PM (d) not enough info
19. 19.True or false: “We asked all 30 classmates; 25 chose the zoo trip.” gives enough evidence. (a) False (b) True
20. 20.🐕 One dog barked at you. What is the fair conclusion? (a) never see dogs (b) that one dog barked (c) all dogs are mean (d) dogs hate you
21. 21.🧩 The film starts at 5 PM. It is a long film. When does it end? (a) 8 PM (b) 6 PM (c) 7 PM (d) not enough info
22. 22.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
23. 23.🧩 Ishaan is 10 years old. Tara is older than Ishaan. How old is Tara? (a) 12 (b) not enough info (c) 11 (d) 15
24. 24.🧩 Ishaan bought 5 mangoes and a lunch box for ₹170 in all. Each mango cost the same. What did one mango cost? (a) ₹34 (b) ₹165 (c) ₹170 (d) not enough info
25. 25.True or false: “We measured the plant every day for a month; it grew 9 cm.” gives enough evidence. (a) False (b) True
26. 26.True or false: “One mango in the box was sour, so all the mangoes are sour.” gives enough evidence. (a) False (b) True
27. 27.True or false: “We checked all 40 mangoes in the box; every one was ripe.” does not give enough evidence. (a) True (b) False
28. 28.🧩 A box of apples has 5 in each row. How many apples are in the box? (a) 5 (b) 10 (c) not enough info (d) 50
29. 29.🧩 Enough evidence or not? “We asked all 30 classmates; 25 chose the zoo trip.” (a) not enough evidence (b) enough evidence
30. 30.🧩 The film starts at 6 PM. It is a long film. When does it end? (a) 9 PM (b) 7 PM (c) 8 PM (d) not enough info
31. 31.🧩 Tara is 7 years old. Diya is older than Tara. How old is Diya? (a) 12 (b) 8 (c) not enough info (d) 9
32. 32.🧩 Enough evidence or not? “We checked all 40 mangoes in the box; every one was ripe.” (a) not enough evidence (b) enough evidence
33. 33.🧩 Tara bought 2 markers for ₹60 in all. Each marker cost the same. What did one marker cost? (a) ₹60 (b) ₹30 (c) ₹35 (d) not enough info
34. 34.🧩 A box of apples has 4 in each row. How many apples are in the box? (a) not enough info (b) 4 (c) 40 (d) 8
35. 35.🧩 Aarav is 10 years old. Ananya is older than Aarav. How old is Ananya? (a) 15 (b) 12 (c) 11 (d) not enough info
36. 36.True or false: “One student said the canteen food was cold, so it is always cold.” gives enough evidence. (a) False (b) True
37. 37.🧩 Before solving a word problem, first check… (a) the colour of ink (b) what facts are given (c) the page number (d) your handwriting
38. 38.📝 What does “evidence” mean? (a) a rumour (b) a loud opinion (c) a guess (d) facts that support it
39. 39.🧩 The film starts at 2 PM. It is a long film. When does it end? (a) 4 PM (b) 3 PM (c) not enough info (d) 5 PM
40. 40.🧩 A box has 7 rows of laddoos, with 6 in each row. How many laddoos are in the box? (a) not enough info (b) 48 (c) 42 (d) 13

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