Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 785 · 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? “One student said the canteen food was cold, so it is always cold.” (a) not enough evidence (b) enough evidence
2. 2.🧩 A box of laddoos has 9 in each row. How many laddoos are in the box? (a) 9 (b) 90 (c) 18 (d) not enough info
3. 3.🧩 Vihaan bought 6 mangoes and a lunch box for ₹380 in all. Each mango cost the same. What did one mango cost? (a) ₹63 (b) ₹374 (c) not enough info (d) ₹380
4. 4.True or false: “One student said the canteen food was cold, so it is always cold.” gives enough evidence. (a) False (b) True
5. 5.🧩 Enough evidence or not? “We tried the new route for 10 days, and it was faster every day.” (a) not enough evidence (b) enough evidence
6. 6.🧩 Enough evidence or not? “We measured the plant every day for a month; it grew 9 cm.” (a) not enough evidence (b) enough evidence
7. 7.📊 Which gives the best evidence about the class’s favourite game? (a) asking one friend (b) guessing (c) asking your pet (d) asking the whole class
8. 8.🧩 Enough evidence or not? “We tested 20 seeds, and 18 of them sprouted.” (a) not enough evidence (b) enough evidence
9. 9.📝 What does “evidence” mean? (a) a loud opinion (b) facts that support it (c) a guess (d) a rumour
10. 10.🧩 Diya is 7 years old. Tara is older than Diya. How old is Tara? (a) not enough info (b) 12 (c) 9 (d) 8
11. 11.🧩 The film starts at 6 PM. It is a long film. When does it end? (a) 9 PM (b) 7 PM (c) not enough info (d) 8 PM
12. 12.🔬 Why do scientists repeat an experiment? (a) to be sure of results (b) to waste time (c) for fun only (d) to change answers
13. 13.🧩 The film starts at 4 PM. It is a long film. When does it end? (a) not enough info (b) 5 PM (c) 7 PM (d) 6 PM
14. 14.🧩 Before solving a word problem, first check… (a) the page number (b) your handwriting (c) what facts are given (d) the colour of ink
15. 15.🧩 Meera is 9 years old. Tara is 5 years older than Meera. How old is Tara? (a) not enough info (b) 5 (c) 15 (d) 14
16. 16.🧩 Kabir bought 2 kites for ₹120 in all. Each kite cost the same. What did one kite cost? (a) ₹65 (b) not enough info (c) ₹60 (d) ₹120
17. 17.True or false: “My friend didn’t like the book, so the book is bad for everyone.” gives enough evidence. (a) False (b) True
18. 18.True or false: “We tried the new route for 10 days, and it was faster every day.” gives enough evidence. (a) True (b) False
19. 19.🧩 Tara bought 5 mangoes and a water bottle for ₹255 in all. Each mango cost the same. What did one mango cost? (a) ₹255 (b) ₹51 (c) not enough info (d) ₹250
20. 20.🧩 A box has 4 rows of oranges, with 9 in each row. How many oranges are in the box? (a) not enough info (b) 36 (c) 13 (d) 45
21. 21.🧩 A box has 3 rows of eggs, with 7 in each row. How many eggs are in the box? (a) not enough info (b) 10 (c) 21 (d) 28
22. 22.🧩 Enough evidence or not? “We checked all 40 mangoes in the box; every one was ripe.” (a) not enough evidence (b) enough evidence
23. 23.🧩 A box has 4 rows of mangoes, with 8 in each row. How many mangoes are in the box? (a) 40 (b) not enough info (c) 32 (d) 12
24. 24.🧩 The film starts at 5 PM. It is a long film. When does it end? (a) not enough info (b) 7 PM (c) 8 PM (d) 6 PM
25. 25.🧩 Vihaan is 7 years old. Arjun is 6 years older than Vihaan. How old is Arjun? (a) 14 (b) not enough info (c) 6 (d) 13
26. 26.True or false: “We asked all 30 classmates; 25 chose the zoo trip.” gives enough evidence. (a) False (b) True
27. 27.🧩 Enough evidence or not? “It rained on my birthday once, so it always rains on birthdays.” (a) not enough evidence (b) enough evidence
28. 28.🧩 A box of apples has 8 in each row. How many apples are in the box? (a) not enough info (b) 8 (c) 80 (d) 16
29. 29.🧩 A box has 7 rows of laddoos, with 5 in each row. How many laddoos are in the box? (a) 35 (b) 40 (c) 12 (d) not enough info
30. 30.🧩 Enough evidence or not? “One mango in the box was sour, so all the mangoes are sour.” (a) not enough evidence (b) enough evidence
31. 31.🧩 Vihaan is 7 years old. Rohan is 7 years older than Vihaan. How old is Rohan? (a) 15 (b) 14 (c) not enough info (d) 7
32. 32.🧩 The film starts at 4 PM and lasts 1 hour. When does it end? (a) 4 PM (b) 6 PM (c) not enough info (d) 5 PM
33. 33.🧩 A box has 8 rows of apples, with 5 in each row. How many apples are in the box? (a) 40 (b) not enough info (c) 45 (d) 13
34. 34.🐕 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
35. 35.🧩 The film starts at 2 PM and lasts 3 hours. When does it end? (a) 5 PM (b) 2 PM (c) 6 PM (d) not enough info
36. 36.🧩 Enough evidence or not? “We asked all 30 classmates; 25 chose the zoo trip.” (a) not enough evidence (b) enough evidence
37. 37.🧩 A box has 4 rows of eggs, with 4 in each row. How many eggs are in the box? (a) 20 (b) not enough info (c) 8 (d) 16
38. 38.🧩 Aarav bought 2 mangoes for ₹90 in all. Each mango cost the same. What did one mango cost? (a) ₹50 (b) not enough info (c) ₹90 (d) ₹45
39. 39.🧩 Rohan bought 2 notebooks for ₹110 in all. Each notebook cost the same. What did one notebook cost? (a) ₹55 (b) ₹60 (c) ₹110 (d) not enough info
40. 40.🧩 The film starts at 2 PM. It is a long film. When does it end? (a) 4 PM (b) not enough info (c) 3 PM (d) 5 PM

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