Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 702 · 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.🧩 A box of mangoes has 4 in each row. How many mangoes are in the box? (a) 8 (b) 40 (c) not enough info (d) 4
2. 2.True or false: “We checked all 40 mangoes in the box; every one was ripe.” does not give enough evidence. (a) False (b) True
3. 3.🧩 Tara bought 3 mangoes for ₹120 in all. Each mango cost the same. What did one mango cost? (a) ₹40 (b) ₹45 (c) not enough info (d) ₹120
4. 4.🧩 Enough evidence or not? “We asked all 30 classmates; 25 chose the zoo trip.” (a) enough evidence (b) not enough evidence
5. 5.🧩 Aarav is 8 years old. Meera is 7 years older than Aarav. How old is Meera? (a) 15 (b) 16 (c) not enough info (d) 7
6. 6.🐕 One dog barked at you. What is the fair conclusion? (a) never see dogs (b) all dogs are mean (c) that one dog barked (d) dogs hate you
7. 7.🧩 Diya is 12 years old. Rohan is 9 years older than Diya. How old is Rohan? (a) 22 (b) not enough info (c) 9 (d) 21
8. 8.🧩 Enough evidence or not? “We measured the plant every day for a month; it grew 9 cm.” (a) enough evidence (b) not enough evidence
9. 9.True or false: “One mango in the box was sour, so all the mangoes are sour.” does not give enough evidence. (a) True (b) False
10. 10.🧩 Before solving a word problem, first check… (a) your handwriting (b) the colour of ink (c) the page number (d) what facts are given
11. 11.🧩 Enough evidence or not? “It rained on my birthday once, so it always rains on birthdays.” (a) enough evidence (b) not enough evidence
12. 12.🥭 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
13. 13.🧩 A box of oranges has 4 in each row. How many oranges are in the box? (a) 40 (b) 4 (c) 8 (d) not enough info
14. 14.🧩 A box of oranges has 6 in each row. How many oranges are in the box? (a) 6 (b) 60 (c) not enough info (d) 12
15. 15.🧩 The film starts at 4 PM. It is a long film. When does it end? (a) 5 PM (b) not enough info (c) 7 PM (d) 6 PM
16. 16.🧩 The film starts at 5 PM. It is a long film. When does it end? (a) not enough info (b) 8 PM (c) 6 PM (d) 7 PM
17. 17.🧩 Tara bought 3 markers and a cap for ₹140 in all. Each marker cost the same. What did one marker cost? (a) ₹137 (b) ₹46 (c) ₹140 (d) not enough info
18. 18.🧩 Enough evidence or not? “We tested 20 seeds, and 18 of them sprouted.” (a) not enough evidence (b) enough evidence
19. 19.🧩 Tara is 6 years old. Vihaan is older than Tara. How old is Vihaan? (a) 7 (b) 8 (c) not enough info (d) 11
20. 20.🧩 A box has 6 rows of apples, with 4 in each row. How many apples are in the box? (a) 10 (b) 24 (c) not enough info (d) 28
21. 21.🧩 Diya is 11 years old. Kabir is 8 years older than Diya. How old is Kabir? (a) not enough info (b) 20 (c) 19 (d) 8
22. 22.🧩 A box of apples has 5 in each row. How many apples are in the box? (a) 5 (b) 10 (c) 50 (d) not enough info
23. 23.True or false: “We measured the plant every day for a month; it grew 9 cm.” does not give enough evidence. (a) True (b) False
24. 24.📝 What does “evidence” mean? (a) a loud opinion (b) facts that support it (c) a guess (d) a rumour
25. 25.🧩 Aarav is 6 years old. Ishaan is older than Aarav. How old is Ishaan? (a) 8 (b) not enough info (c) 7 (d) 11
26. 26.🧩 The film starts at 2 PM and lasts 3 hours. When does it end? (a) 2 PM (b) not enough info (c) 6 PM (d) 5 PM
27. 27.True or false: “My friend didn’t like the book, so the book is bad for everyone.” does not give enough evidence. (a) False (b) True
28. 28.🔬 Why do scientists repeat an experiment? (a) to waste time (b) to be sure of results (c) to change answers (d) for fun only
29. 29.📊 Which gives the best evidence about the class’s favourite game? (a) asking your pet (b) asking the whole class (c) asking one friend (d) guessing
30. 30.🧩 A box has 8 rows of guavas, with 6 in each row. How many guavas are in the box? (a) 54 (b) 14 (c) not enough info (d) 48
31. 31.🧩 Diya is 11 years old. Aarav is 5 years older than Diya. How old is Aarav? (a) not enough info (b) 17 (c) 5 (d) 16
32. 32.🧩 Enough evidence or not? “We checked all 40 mangoes in the box; every one was ripe.” (a) enough evidence (b) not enough evidence
33. 33.🧩 Nisha bought 5 pens for ₹150 in all. Each pen cost the same. What did one pen cost? (a) ₹150 (b) ₹30 (c) ₹35 (d) not enough info
34. 34.🧩 Kabir bought 3 mangoes for ₹120 in all. Each mango cost the same. What did one mango cost? (a) ₹120 (b) not enough info (c) ₹40 (d) ₹45
35. 35.🧩 Ananya bought 2 mangoes and a water bottle for ₹50 in all. Each mango cost the same. What did one mango cost? (a) ₹48 (b) not enough info (c) ₹50 (d) ₹25
36. 36.🧩 Arjun is 7 years old. Vihaan is older than Arjun. How old is Vihaan? (a) 9 (b) not enough info (c) 12 (d) 8
37. 37.🧩 A box of mangoes has 7 in each row. How many mangoes are in the box? (a) 7 (b) 70 (c) not enough info (d) 14
38. 38.True or false: “A dog barked at me once, so all dogs are mean.” does not give enough evidence. (a) True (b) False
39. 39.🧩 Ishaan bought 5 mangoes and a bag for ₹220 in all. Each mango cost the same. What did one mango cost? (a) ₹215 (b) ₹44 (c) not enough info (d) ₹220
40. 40.🧩 Aarav is 7 years old. Vihaan is 6 years older than Aarav. How old is Vihaan? (a) 6 (b) 13 (c) not enough info (d) 14

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