Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 459 · 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.True or false: “We checked all 40 mangoes in the box; every one was ripe.” does not give enough evidence. (a) True (b) False
2. 2.🧩 Enough evidence or not? “We checked all 40 mangoes in the box; every one was ripe.” (a) not enough evidence (b) enough evidence
3. 3.🧩 A box has 7 rows of guavas, with 5 in each row. How many guavas are in the box? (a) 40 (b) 35 (c) not enough info (d) 12
4. 4.🧩 A box has 3 rows of mangoes, with 6 in each row. How many mangoes are in the box? (a) 24 (b) 9 (c) 18 (d) not enough info
5. 5.🧩 Enough evidence or not? “We tested 20 seeds, and 18 of them sprouted.” (a) not enough evidence (b) enough evidence
6. 6.🧩 The film starts at 3 PM. It is a long film. When does it end? (a) not enough info (b) 5 PM (c) 6 PM (d) 4 PM
7. 7.🧩 Meera is 10 years old. Nisha is 6 years older than Meera. How old is Nisha? (a) 6 (b) 16 (c) 17 (d) not enough info
8. 8.True or false: “We asked all 30 classmates; 25 chose the zoo trip.” gives enough evidence. (a) False (b) True
9. 9.🧩 A box has 7 rows of oranges, with 6 in each row. How many oranges are in the box? (a) 48 (b) not enough info (c) 13 (d) 42
10. 10.🧩 A box has 4 rows of apples, with 7 in each row. How many apples are in the box? (a) 28 (b) 35 (c) not enough info (d) 11
11. 11.🧩 Meera is 10 years old. Nisha is older than Meera. How old is Nisha? (a) 12 (b) 15 (c) 11 (d) not enough info
12. 12.🧩 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
13. 13.📊 Which gives the best evidence about the class’s favourite game? (a) asking the whole class (b) asking one friend (c) asking your pet (d) guessing
14. 14.🧩 A box has 8 rows of eggs, with 7 in each row. How many eggs are in the box? (a) 63 (b) not enough info (c) 15 (d) 56
15. 15.🧩 Meera bought 4 markers for ₹60 in all. Each marker cost the same. What did one marker cost? (a) ₹20 (b) ₹15 (c) not enough info (d) ₹60
16. 16.True or false: “One student said the canteen food was cold, so it is always cold.” gives enough evidence. (a) True (b) False
17. 17.🧩 The film starts at 5 PM and lasts 2 hours. When does it end? (a) 7 PM (b) 8 PM (c) not enough info (d) 5 PM
18. 18.🧩 A box has 3 rows of oranges, with 7 in each row. How many oranges are in the box? (a) 21 (b) 10 (c) 28 (d) not enough info
19. 19.🧩 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
20. 20.🧩 Ishaan bought 4 notebooks for ₹160 in all. Each notebook cost the same. What did one notebook cost? (a) ₹40 (b) ₹45 (c) ₹160 (d) not enough info
21. 21.🧩 The film starts at 5 PM. It is a long film. When does it end? (a) 7 PM (b) 8 PM (c) 6 PM (d) not enough info
22. 22.🧩 Enough evidence or not? “A dog barked at me once, so all dogs are mean.” (a) enough evidence (b) not enough evidence
23. 23.🧩 Saanvi bought 5 kites and a water bottle for ₹205 in all. Each kite cost the same. What did one kite cost? (a) not enough info (b) ₹41 (c) ₹200 (d) ₹205
24. 24.True or false: “It rained on my birthday once, so it always rains on birthdays.” does not give enough evidence. (a) False (b) True
25. 25.True or false: “One mango in the box was sour, so all the mangoes are sour.” gives enough evidence. (a) False (b) True
26. 26.🧩 The film starts at 4 PM. It is a long film. When does it end? (a) 5 PM (b) 6 PM (c) not enough info (d) 7 PM
27. 27.True or false: “A dog barked at me once, so all dogs are mean.” does not give enough evidence. (a) False (b) True
28. 28.🧩 Rohan bought 2 markers for ₹110 in all. Each marker cost the same. What did one marker cost? (a) ₹60 (b) ₹110 (c) ₹55 (d) not enough info
29. 29.🧩 Saanvi bought 3 notebooks for ₹30 in all. Each notebook cost the same. What did one notebook cost? (a) ₹15 (b) ₹10 (c) ₹30 (d) not enough info
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: “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.🧩 Enough evidence or not? “We measured the plant every day for a month; it grew 9 cm.” (a) not enough evidence (b) enough evidence
33. 33.🧩 Saanvi is 9 years old. Nisha is 9 years older than Saanvi. How old is Nisha? (a) not enough info (b) 9 (c) 18 (d) 19
34. 34.🧩 Enough evidence or not? “We asked all 30 classmates; 25 chose the zoo trip.” (a) not enough evidence (b) enough evidence
35. 35.🧩 The film starts at 2 PM and lasts 2 hours. When does it end? (a) 4 PM (b) 2 PM (c) not enough info (d) 5 PM
36. 36.🧩 The film starts at 2 PM. It is a long film. When does it end? (a) 4 PM (b) 5 PM (c) 3 PM (d) not enough info
37. 37.🧩 Arjun is 6 years old. Tara is 2 years older than Arjun. How old is Tara? (a) 9 (b) not enough info (c) 8 (d) 2
38. 38.🧩 A box of laddoos has 4 in each row. How many laddoos are in the box? (a) 8 (b) 40 (c) 4 (d) not enough info
39. 39.🧩 A box has 3 rows of laddoos, with 8 in each row. How many laddoos are in the box? (a) not enough info (b) 32 (c) 11 (d) 24
40. 40.🧩 Arjun is 7 years old. Tara is older than Arjun. How old is Tara? (a) 9 (b) 12 (c) 8 (d) not enough info

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