Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 391 · 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 checked all 40 mangoes in the box; every one was ripe.” (a) not enough evidence (b) enough evidence
2. 2.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
3. 3.🐕 One dog barked at you. What is the fair conclusion? (a) never see dogs (b) dogs hate you (c) all dogs are mean (d) that one dog barked
4. 4.🧩 Saanvi bought 5 notebooks and a lunch box for ₹250 in all. Each notebook cost the same. What did one notebook cost? (a) not enough info (b) ₹250 (c) ₹50 (d) ₹245
5. 5.🧩 Aarav is 11 years old. Tara is older than Aarav. How old is Tara? (a) not enough info (b) 13 (c) 12 (d) 16
6. 6.🧩 Enough evidence or not? “It rained on my birthday once, so it always rains on birthdays.” (a) not enough evidence (b) enough evidence
7. 7.True or false: “We asked all 30 classmates; 25 chose the zoo trip.” does not give enough evidence. (a) False (b) True
8. 8.True or false: “It rained on my birthday once, so it always rains on birthdays.” does not give enough evidence. (a) True (b) False
9. 9.🧩 A box of apples has 6 in each row. How many apples are in the box? (a) not enough info (b) 12 (c) 60 (d) 6
10. 10.📊 Which gives the best evidence about the class’s favourite game? (a) guessing (b) asking your pet (c) asking one friend (d) asking the whole class
11. 11.🧩 Before solving a word problem, first check… (a) your handwriting (b) the colour of ink (c) what facts are given (d) the page number
12. 12.True or false: “One mango in the box was sour, so all the mangoes are sour.” gives enough evidence. (a) True (b) False
13. 13.🧩 Saanvi is 6 years old. Nisha is older than Saanvi. How old is Nisha? (a) 8 (b) 7 (c) not enough info (d) 11
14. 14.True or false: “We asked all 30 classmates; 25 chose the zoo trip.” gives enough evidence. (a) False (b) True
15. 15.🧩 The film starts at 2 PM and lasts 3 hours. When does it end? (a) 5 PM (b) 6 PM (c) not enough info (d) 2 PM
16. 16.🧩 Enough evidence or not? “We measured the plant every day for a month; it grew 9 cm.” (a) enough evidence (b) not enough evidence
17. 17.🧩 Enough evidence or not? “One student said the canteen food was cold, so it is always cold.” (a) enough evidence (b) not enough evidence
18. 18.🧩 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
19. 19.🧩 The film starts at 4 PM. It is a long film. When does it end? (a) not enough info (b) 7 PM (c) 5 PM (d) 6 PM
20. 20.🧩 Diya is 7 years old. Kabir is older than Diya. How old is Kabir? (a) not enough info (b) 12 (c) 9 (d) 8
21. 21.🧩 A box has 6 rows of mangoes, with 9 in each row. How many mangoes are in the box? (a) not enough info (b) 54 (c) 15 (d) 63
22. 22.🥭 You taste one mango from a box of 50, and it is sweet. Can you be sure all 50 are sweet? (a) yes, mangoes match (b) yes, it is certain (c) no mango is sweet (d) no, check more
23. 23.🧩 Ananya bought 6 markers and a lunch box for ₹230 in all. Each marker cost the same. What did one marker cost? (a) not enough info (b) ₹224 (c) ₹38 (d) ₹230
24. 24.🧩 A box has 3 rows of laddoos, with 7 in each row. How many laddoos are in the box? (a) not enough info (b) 28 (c) 21 (d) 10
25. 25.True or false: “We measured the plant every day for a month; it grew 9 cm.” does not give enough evidence. (a) False (b) True
26. 26.🧩 A box has 6 rows of laddoos, with 6 in each row. How many laddoos are in the box? (a) 36 (b) 42 (c) not enough info (d) 12
27. 27.🔬 Why do scientists repeat an experiment? (a) to be sure of results (b) to waste time (c) for fun only (d) to change answers
28. 28.🧩 Enough evidence or not? “One mango in the box was sour, so all the mangoes are sour.” (a) not enough evidence (b) enough evidence
29. 29.📝 What does “evidence” mean? (a) facts that support it (b) a loud opinion (c) a rumour (d) a guess
30. 30.🧩 A box has 6 rows of laddoos, with 4 in each row. How many laddoos are in the box? (a) not enough info (b) 24 (c) 28 (d) 10
31. 31.🧩 A box of guavas has 8 in each row. How many guavas are in the box? (a) 80 (b) not enough info (c) 8 (d) 16
32. 32.True or false: “We checked all 40 mangoes in the box; every one was ripe.” does not give enough evidence. (a) False (b) True
33. 33.🧩 Tara is 6 years old. Aarav is 4 years older than Tara. How old is Aarav? (a) not enough info (b) 4 (c) 10 (d) 11
34. 34.🧩 A box of guavas has 5 in each row. How many guavas are in the box? (a) 50 (b) not enough info (c) 10 (d) 5
35. 35.🧩 Enough evidence or not? “We asked all 30 classmates; 25 chose the zoo trip.” (a) enough evidence (b) not enough evidence
36. 36.🧩 Arjun bought 3 kites and a lunch box for ₹140 in all. Each kite cost the same. What did one kite cost? (a) ₹137 (b) ₹140 (c) ₹46 (d) not enough info
37. 37.🧩 Enough evidence or not? “We tested 20 seeds, and 18 of them sprouted.” (a) enough evidence (b) not enough evidence
38. 38.True or false: “We tried the new route for 10 days, and it was faster every day.” gives enough evidence. (a) True (b) False
39. 39.🧩 Diya bought 3 mangoes and a water bottle for ₹195 in all. Each mango cost the same. What did one mango cost? (a) not enough info (b) ₹192 (c) ₹65 (d) ₹195
40. 40.🧩 Nisha bought 4 notebooks for ₹80 in all. Each notebook cost the same. What did one notebook cost? (a) not enough info (b) ₹20 (c) ₹80 (d) ₹25

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