Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 487 · 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 tested 20 seeds, and 18 of them sprouted.” gives enough evidence. (a) True (b) False
2. 2.🧩 Tara is 11 years old. Meera is 6 years older than Tara. How old is Meera? (a) 18 (b) 6 (c) 17 (d) not enough info
3. 3.🧩 Enough evidence or not? “A dog barked at me once, so all dogs are mean.” (a) enough evidence (b) not enough evidence
4. 4.🧩 A box of oranges has 9 in each row. How many oranges are in the box? (a) 90 (b) 9 (c) 18 (d) not enough info
5. 5.🧩 A box has 8 rows of eggs, with 8 in each row. How many eggs are in the box? (a) 72 (b) 64 (c) 16 (d) not enough info
6. 6.True or false: “It rained on my birthday once, so it always rains on birthdays.” does not give enough evidence. (a) True (b) False
7. 7.True or false: “We measured the plant every day for a month; it grew 9 cm.” gives enough evidence. (a) True (b) False
8. 8.🧩 A box of eggs has 4 in each row. How many eggs are in the box? (a) not enough info (b) 40 (c) 8 (d) 4
9. 9.🧩 Enough evidence or not? “We asked all 30 classmates; 25 chose the zoo trip.” (a) enough evidence (b) not enough evidence
10. 10.🧩 The film starts at 3 PM. It is a long film. When does it end? (a) 4 PM (b) not enough info (c) 6 PM (d) 5 PM
11. 11.🥭 You taste one mango from a box of 50, and it is sweet. Can you be sure all 50 are sweet? (a) no mango is sweet (b) no, check more (c) yes, mangoes match (d) yes, it is certain
12. 12.🐕 One dog barked at you. What is the fair conclusion? (a) that one dog barked (b) dogs hate you (c) never see dogs (d) all dogs are mean
13. 13.🧩 Enough evidence or not? “One student said the canteen food was cold, so it is always cold.” (a) enough evidence (b) not enough evidence
14. 14.🧩 Tara is 6 years old. Vihaan is 5 years older than Tara. How old is Vihaan? (a) 5 (b) 12 (c) not enough info (d) 11
15. 15.🧩 Enough evidence or not? “We checked all 40 mangoes in the box; every one was ripe.” (a) not enough evidence (b) enough evidence
16. 16.True or false: “It rained on my birthday once, so it always rains on birthdays.” gives enough evidence. (a) True (b) False
17. 17.🧩 Before solving a word problem, first check… (a) the page number (b) the colour of ink (c) what facts are given (d) your handwriting
18. 18.📊 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
19. 19.🧩 Ananya is 7 years old. Arjun is 4 years older than Ananya. How old is Arjun? (a) 12 (b) not enough info (c) 11 (d) 4
20. 20.🧩 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
21. 21.True or false: “One student said the canteen food was cold, so it is always cold.” gives enough evidence. (a) False (b) True
22. 22.🧩 A box of apples has 8 in each row. How many apples are in the box? (a) 80 (b) 8 (c) 16 (d) not enough info
23. 23.🧩 A box of mangoes has 4 in each row. How many mangoes are in the box? (a) 4 (b) 40 (c) 8 (d) not enough info
24. 24.🧩 Enough evidence or not? “We tested 20 seeds, and 18 of them sprouted.” (a) not enough evidence (b) enough evidence
25. 25.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
26. 26.🧩 The film starts at 2 PM and lasts 1 hour. When does it end? (a) 2 PM (b) not enough info (c) 4 PM (d) 3 PM
27. 27.🧩 Nisha bought 6 pens and a water bottle for ₹230 in all. Each pen cost the same. What did one pen cost? (a) ₹230 (b) not enough info (c) ₹38 (d) ₹224
28. 28.🧩 A box has 6 rows of apples, with 9 in each row. How many apples are in the box? (a) 54 (b) not enough info (c) 15 (d) 63
29. 29.🧩 Kabir bought 4 kites for ₹220 in all. Each kite cost the same. What did one kite cost? (a) not enough info (b) ₹220 (c) ₹55 (d) ₹60
30. 30.🧩 A box of laddoos has 5 in each row. How many laddoos are in the box? (a) 10 (b) 50 (c) 5 (d) not enough info
31. 31.🧩 A box has 7 rows of apples, with 7 in each row. How many apples are in the box? (a) 49 (b) 56 (c) 14 (d) not enough info
32. 32.🧩 Enough evidence or not? “It rained on my birthday once, so it always rains on birthdays.” (a) not enough evidence (b) enough evidence
33. 33.🧩 The film starts at 6 PM. It is a long film. When does it end? (a) 8 PM (b) not enough info (c) 7 PM (d) 9 PM
34. 34.🧩 Enough evidence or not? “One mango in the box was sour, so all the mangoes are sour.” (a) enough evidence (b) not enough evidence
35. 35.🧩 The film starts at 5 PM and lasts 3 hours. When does it end? (a) 5 PM (b) 9 PM (c) 8 PM (d) not enough info
36. 36.🧩 The film starts at 3 PM and lasts 2 hours. When does it end? (a) 3 PM (b) 5 PM (c) 6 PM (d) not enough info
37. 37.🧩 Rohan bought 2 balls for ₹80 in all. Each ball cost the same. What did one ball cost? (a) ₹45 (b) not enough info (c) ₹40 (d) ₹80
38. 38.🧩 The film starts at 3 PM and lasts 3 hours. When does it end? (a) 7 PM (b) 6 PM (c) 3 PM (d) not enough info
39. 39.🧩 Meera bought 3 kites and a bag for ₹170 in all. Each kite cost the same. What did one kite cost? (a) ₹56 (b) not enough info (c) ₹170 (d) ₹167
40. 40.🧩 A box has 6 rows of mangoes, with 7 in each row. How many mangoes are in the box? (a) 49 (b) 42 (c) 13 (d) not enough info

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