Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 7 · 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.🧩 The film starts at 4 PM. It is a long film. When does it end? (a) 7 PM (b) 6 PM (c) not enough info (d) 5 PM
3. 3.🧩 Tara is 6 years old. Nisha is 3 years older than Tara. How old is Nisha? (a) 9 (b) not enough info (c) 10 (d) 3
4. 4.🧩 Ananya bought 2 mangoes and a cap for ₹180 in all. Each mango cost the same. What did one mango cost? (a) ₹180 (b) not enough info (c) ₹90 (d) ₹178
5. 5.True or false: “We asked all 30 classmates; 25 chose the zoo trip.” gives enough evidence. (a) True (b) False
6. 6.🧩 Before solving a word problem, first check… (a) what facts are given (b) the page number (c) the colour of ink (d) your handwriting
7. 7.🧩 Enough evidence or not? “We asked all 30 classmates; 25 chose the zoo trip.” (a) enough evidence (b) not enough evidence
8. 8.🧩 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
9. 9.🧩 Enough evidence or not? “It rained on my birthday once, so it always rains on birthdays.” (a) enough evidence (b) not enough evidence
10. 10.🧩 Enough evidence or not? “We measured the plant every day for a month; it grew 9 cm.” (a) not enough evidence (b) enough evidence
11. 11.🧩 The film starts at 6 PM. It is a long film. When does it end? (a) 8 PM (b) 9 PM (c) 7 PM (d) not enough info
12. 12.🧩 Vihaan bought 4 pens for ₹120 in all. Each pen cost the same. What did one pen cost? (a) ₹35 (b) not enough info (c) ₹30 (d) ₹120
13. 13.True or false: “It rained on my birthday once, so it always rains on birthdays.” does not give enough evidence. (a) True (b) False
14. 14.🧩 A box has 4 rows of eggs, with 7 in each row. How many eggs are in the box? (a) not enough info (b) 11 (c) 28 (d) 35
15. 15.🥭 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, check more (d) no mango is sweet
16. 16.🧩 Enough evidence or not? “One student said the canteen food was cold, so it is always cold.” (a) not enough evidence (b) enough evidence
17. 17.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
18. 18.True or false: “It rained on my birthday once, so it always rains on birthdays.” gives enough evidence. (a) False (b) True
19. 19.🐕 One dog barked at you. What is the fair conclusion? (a) all dogs are mean (b) dogs hate you (c) never see dogs (d) that one dog barked
20. 20.📊 Which gives the best evidence about the class’s favourite game? (a) asking your pet (b) asking one friend (c) asking the whole class (d) guessing
21. 21.🧩 The film starts at 3 PM. It is a long film. When does it end? (a) not enough info (b) 6 PM (c) 4 PM (d) 5 PM
22. 22.🧩 A box has 5 rows of mangoes, with 7 in each row. How many mangoes are in the box? (a) not enough info (b) 12 (c) 42 (d) 35
23. 23.🧩 The film starts at 5 PM and lasts 2 hours. When does it end? (a) not enough info (b) 5 PM (c) 8 PM (d) 7 PM
24. 24.🧩 Diya is 7 years old. Aarav is 7 years older than Diya. How old is Aarav? (a) not enough info (b) 7 (c) 14 (d) 15
25. 25.🧩 Saanvi is 6 years old. Vihaan is older than Saanvi. How old is Vihaan? (a) 8 (b) 11 (c) 7 (d) not enough info
26. 26.🧩 A box of mangoes has 8 in each row. How many mangoes are in the box? (a) 8 (b) 80 (c) not enough info (d) 16
27. 27.🧩 Arjun bought 6 pens for ₹360 in all. Each pen cost the same. What did one pen cost? (a) ₹360 (b) not enough info (c) ₹60 (d) ₹65
28. 28.🧩 The film starts at 4 PM and lasts 3 hours. When does it end? (a) not enough info (b) 8 PM (c) 7 PM (d) 4 PM
29. 29.True or false: “We tested 20 seeds, and 18 of them sprouted.” does not give enough evidence. (a) True (b) False
30. 30.🧩 A box of eggs has 5 in each row. How many eggs are in the box? (a) not enough info (b) 5 (c) 50 (d) 10
31. 31.🧩 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
32. 32.🧩 Arjun bought 6 kites and a cap for ₹240 in all. Each kite cost the same. What did one kite cost? (a) ₹240 (b) ₹234 (c) not enough info (d) ₹40
33. 33.🧩 Enough evidence or not? “We tested 20 seeds, and 18 of them sprouted.” (a) enough evidence (b) not enough evidence
34. 34.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
35. 35.🧩 The film starts at 6 PM and lasts 1 hour. When does it end? (a) 6 PM (b) not enough info (c) 7 PM (d) 8 PM
36. 36.True or false: “One mango in the box was sour, so all the mangoes are sour.” gives enough evidence. (a) False (b) True
37. 37.🧩 Saanvi is 7 years old. Diya is older than Saanvi. How old is Diya? (a) 12 (b) 9 (c) not enough info (d) 8
38. 38.📝 What does “evidence” mean? (a) a rumour (b) facts that support it (c) a guess (d) a loud opinion
39. 39.🧩 A box of laddoos has 5 in each row. How many laddoos are in the box? (a) 50 (b) 5 (c) 10 (d) not enough info
40. 40.🧩 Enough evidence or not? “One mango in the box was sour, so all the mangoes are sour.” (a) enough evidence (b) not enough evidence

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