Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 457 · 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.🧩 Ishaan is 12 years old. Meera is older than Ishaan. How old is Meera? (a) not enough info (b) 17 (c) 13 (d) 14
2. 2.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
3. 3.🧩 The film starts at 5 PM and lasts 1 hour. When does it end? (a) 7 PM (b) not enough info (c) 5 PM (d) 6 PM
4. 4.🧩 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
5. 5.🧩 Rohan is 9 years old. Meera is older than Rohan. How old is Meera? (a) not enough info (b) 11 (c) 14 (d) 10
6. 6.🥭 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) no mango is sweet (c) yes, it is certain (d) no, check more
7. 7.🧩 Saanvi is 6 years old. Diya is older than Saanvi. How old is Diya? (a) 7 (b) 8 (c) not enough info (d) 11
8. 8.🧩 Arjun is 9 years old. Aarav is older than Arjun. How old is Aarav? (a) 10 (b) 11 (c) 14 (d) not enough info
9. 9.🧩 Vihaan bought 2 mangoes and a bag for ₹190 in all. Each mango cost the same. What did one mango cost? (a) ₹188 (b) ₹95 (c) ₹190 (d) not enough info
10. 10.🧩 A box of oranges has 7 in each row. How many oranges are in the box? (a) 14 (b) 7 (c) 70 (d) not enough info
11. 11.🧩 Enough evidence or not? “We measured the plant every day for a month; it grew 9 cm.” (a) enough evidence (b) not enough evidence
12. 12.True or false: “We asked all 30 classmates; 25 chose the zoo trip.” gives enough evidence. (a) False (b) True
13. 13.🧩 Nisha is 9 years old. Saanvi is older than Nisha. How old is Saanvi? (a) 10 (b) 14 (c) 11 (d) not enough info
14. 14.🧩 A box of mangoes has 9 in each row. How many mangoes are in the box? (a) 9 (b) 18 (c) not enough info (d) 90
15. 15.True or false: “We tried the new route for 10 days, and it was faster every day.” gives enough evidence. (a) False (b) True
16. 16.🧩 A box has 3 rows of guavas, with 7 in each row. How many guavas are in the box? (a) 21 (b) 28 (c) not enough info (d) 10
17. 17.True or false: “We tested 20 seeds, and 18 of them sprouted.” does not give enough evidence. (a) True (b) False
18. 18.🧩 The film starts at 5 PM and lasts 3 hours. When does it end? (a) 5 PM (b) not enough info (c) 8 PM (d) 9 PM
19. 19.🧩 A box of eggs has 8 in each row. How many eggs are in the box? (a) 80 (b) not enough info (c) 8 (d) 16
20. 20.🧩 Ishaan is 7 years old. Nisha is 7 years older than Ishaan. How old is Nisha? (a) 7 (b) not enough info (c) 14 (d) 15
21. 21.🧩 A box has 4 rows of mangoes, with 7 in each row. How many mangoes are in the box? (a) not enough info (b) 35 (c) 11 (d) 28
22. 22.🧩 The film starts at 5 PM. It is a long film. When does it end? (a) 7 PM (b) 8 PM (c) not enough info (d) 6 PM
23. 23.🧩 The film starts at 3 PM. It is a long film. When does it end? (a) 4 PM (b) 5 PM (c) not enough info (d) 6 PM
24. 24.🧩 Enough evidence or not? “One student said the canteen food was cold, so it is always cold.” (a) enough evidence (b) not enough evidence
25. 25.🧩 Enough evidence or not? “My friend didn’t like the book, so the book is bad for everyone.” (a) not enough evidence (b) enough evidence
26. 26.🧩 Diya bought 2 notebooks for ₹120 in all. Each notebook cost the same. What did one notebook cost? (a) ₹120 (b) not enough info (c) ₹60 (d) ₹65
27. 27.🧩 Before solving a word problem, first check… (a) the page number (b) what facts are given (c) the colour of ink (d) your handwriting
28. 28.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
29. 29.🧩 Meera is 11 years old. Arjun is older than Meera. How old is Arjun? (a) not enough info (b) 16 (c) 13 (d) 12
30. 30.🧩 Enough evidence or not? “We tested 20 seeds, and 18 of them sprouted.” (a) not enough evidence (b) enough evidence
31. 31.🧩 A box has 3 rows of apples, with 7 in each row. How many apples are in the box? (a) 10 (b) 28 (c) not enough info (d) 21
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.True or false: “One student said the canteen food was cold, so it is always cold.” does not give enough evidence. (a) False (b) True
34. 34.📝 What does “evidence” mean? (a) facts that support it (b) a loud opinion (c) a rumour (d) a guess
35. 35.True or false: “A dog barked at me once, so all dogs are mean.” gives enough evidence. (a) False (b) True
36. 36.🧩 Ishaan is 11 years old. Diya is 9 years older than Ishaan. How old is Diya? (a) 9 (b) 20 (c) 21 (d) not enough info
37. 37.True or false: “We checked all 40 mangoes in the box; every one was ripe.” gives enough evidence. (a) True (b) False
38. 38.🧩 Kabir is 9 years old. Vihaan is 5 years older than Kabir. How old is Vihaan? (a) 5 (b) not enough info (c) 15 (d) 14
39. 39.🧩 A box of eggs has 6 in each row. How many eggs are in the box? (a) not enough info (b) 12 (c) 60 (d) 6
40. 40.🧩 The film starts at 2 PM and lasts 1 hour. When does it end? (a) 2 PM (b) not enough info (c) 4 PM (d) 3 PM

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