Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 168 · 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) guessing (b) asking one friend (c) asking your pet (d) asking the whole class
2. 2.🧩 A box of laddoos has 8 in each row. How many laddoos are in the box? (a) 80 (b) 8 (c) not enough info (d) 16
3. 3.🧩 Tara bought 6 mangoes for ₹360 in all. Each mango cost the same. What did one mango cost? (a) ₹65 (b) ₹360 (c) not enough info (d) ₹60
4. 4.🧩 Enough evidence or not? “We tested 20 seeds, and 18 of them sprouted.” (a) enough evidence (b) not enough evidence
5. 5.🧩 Enough evidence or not? “We asked all 30 classmates; 25 chose the zoo trip.” (a) enough evidence (b) not enough evidence
6. 6.🧩 A box has 7 rows of mangoes, with 5 in each row. How many mangoes are in the box? (a) 35 (b) 40 (c) not enough info (d) 12
7. 7.🧩 A box has 6 rows of laddoos, with 8 in each row. How many laddoos are in the box? (a) 14 (b) not enough info (c) 56 (d) 48
8. 8.🧩 A box has 8 rows of eggs, with 8 in each row. How many eggs are in the box? (a) 72 (b) not enough info (c) 16 (d) 64
9. 9.True or false: “It rained on my birthday once, so it always rains on birthdays.” does not give enough evidence. (a) True (b) False
10. 10.🧩 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
11. 11.🧩 Meera is 11 years old. Tara is older than Meera. How old is Tara? (a) not enough info (b) 13 (c) 12 (d) 16
12. 12.🧩 Saanvi is 8 years old. Nisha is 5 years older than Saanvi. How old is Nisha? (a) 13 (b) not enough info (c) 14 (d) 5
13. 13.🧩 A box of laddoos has 7 in each row. How many laddoos are in the box? (a) 7 (b) 14 (c) 70 (d) not enough info
14. 14.🧩 Kabir is 10 years old. Aarav is 6 years older than Kabir. How old is Aarav? (a) 16 (b) 17 (c) 6 (d) not enough info
15. 15.📝 What does “evidence” mean? (a) a guess (b) facts that support it (c) a rumour (d) a loud opinion
16. 16.🧩 Arjun bought 6 notebooks and a cap for ₹110 in all. Each notebook cost the same. What did one notebook cost? (a) not enough info (b) ₹110 (c) ₹104 (d) ₹18
17. 17.True or false: “A dog barked at me once, so all dogs are mean.” does not give enough evidence. (a) False (b) True
18. 18.🧩 Kabir bought 3 balls and a water bottle for ₹190 in all. Each ball cost the same. What did one ball cost? (a) ₹190 (b) ₹187 (c) ₹63 (d) not enough info
19. 19.🧩 A box has 4 rows of eggs, with 8 in each row. How many eggs are in the box? (a) 40 (b) 32 (c) not enough info (d) 12
20. 20.🧩 A box has 6 rows of apples, with 4 in each row. How many apples are in the box? (a) 10 (b) 28 (c) not enough info (d) 24
21. 21.🧩 A box has 8 rows of mangoes, with 6 in each row. How many mangoes are in the box? (a) not enough info (b) 54 (c) 48 (d) 14
22. 22.True or false: “We tested 20 seeds, and 18 of them sprouted.” does not give enough evidence. (a) False (b) True
23. 23.🧩 Before solving a word problem, first check… (a) your handwriting (b) what facts are given (c) the page number (d) the colour of ink
24. 24.🧩 Diya is 12 years old. Ananya is 6 years older than Diya. How old is Ananya? (a) 18 (b) 6 (c) 19 (d) not enough info
25. 25.🔬 Why do scientists repeat an experiment? (a) to be sure of results (b) for fun only (c) to waste time (d) to change answers
26. 26.🧩 Ananya is 11 years old. Meera is 5 years older than Ananya. How old is Meera? (a) not enough info (b) 5 (c) 16 (d) 17
27. 27.🥭 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) yes, mangoes match (c) no mango is sweet (d) no, check more
28. 28.🧩 The film starts at 4 PM. It is a long film. When does it end? (a) 7 PM (b) not enough info (c) 5 PM (d) 6 PM
29. 29.🧩 A box has 3 rows of eggs, with 9 in each row. How many eggs are in the box? (a) not enough info (b) 36 (c) 27 (d) 12
30. 30.🧩 A box of mangoes has 7 in each row. How many mangoes are in the box? (a) 7 (b) 14 (c) not enough info (d) 70
31. 31.🐕 One dog barked at you. What is the fair conclusion? (a) dogs hate you (b) all dogs are mean (c) that one dog barked (d) never see dogs
32. 32.True or false: “We tried the new route for 10 days, and it was faster every day.” gives enough evidence. (a) False (b) True
33. 33.True or false: “One student said the canteen food was cold, so it is always cold.” gives enough evidence. (a) False (b) True
34. 34.🧩 The film starts at 2 PM and lasts 3 hours. When does it end? (a) 2 PM (b) not enough info (c) 5 PM (d) 6 PM
35. 35.🧩 Diya is 6 years old. Vihaan is older than Diya. How old is Vihaan? (a) not enough info (b) 8 (c) 7 (d) 11
36. 36.🧩 Diya is 10 years old. Meera is 2 years older than Diya. How old is Meera? (a) 12 (b) not enough info (c) 13 (d) 2
37. 37.True or false: “My friend didn’t like the book, so the book is bad for everyone.” does not give enough evidence. (a) True (b) False
38. 38.🧩 Ishaan is 8 years old. Arjun is 5 years older than Ishaan. How old is Arjun? (a) 14 (b) 5 (c) not enough info (d) 13
39. 39.True or false: “We tested 20 seeds, and 18 of them sprouted.” gives enough evidence. (a) True (b) False
40. 40.🧩 Arjun is 10 years old. Rohan is older than Arjun. How old is Rohan? (a) 11 (b) 15 (c) 12 (d) not enough info

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