1. Problem: What should be subtracted from 3L 300 ml to get 2L 800 ml? Step 1: Convert liters and milliliters to a single unit (milliliters). 3L 300 ml = 3 \times 1000 + 300 = 3300 ml 2L 800 ml = 2 \times 1000 + 800 = 2800 ml Step 2: Subtract to find the amount to be subtracted. Amount to subtract = 3300 ml - 2800 ml = 500 ml Step 3: Convert back to liters and milliliters if needed. 500 ml = 0 L 500 ml Answer: C) 500 ml 2. Problem: If 5 apples weigh 75 kg, what is the weight of 7 apples? Step 1: Find the weight of one apple. Weight per apple = \frac{75}{5} = 15 kg Step 2: Find the weight of 7 apples. Weight of 7 apples = 7 \times 15 = 105 kg Answer: A) 105 kg 3. Problem: Convert 75 m 55 cm into centimetres. Step 1: Convert meters to centimeters. 75 m = 75 \times 100 = 7500 cm Step 2: Add the centimeters. Total = 7500 + 55 = 7555 cm Answer: C) 7555 cm 4. Problem: Fill in the blank: 460 + 40 = 10 \times _____ Step 1: Calculate left side. 460 + 40 = 500 Step 2: Divide by 10 to find blank. Blank = \frac{500}{10} = 50 Answer: D) 50 5. Problem: Which is the same as 6 \times 8? Step 1: Calculate 6 \times 8 = 48 Step 2: Check options for sum equal to 48. Option C: 8+8+8+8+8+8 = 6 \times 8 = 48 Answer: C) 8+8+8+8+8+8 6. Problem: What number comes after [8 tens + 8 ones]? Step 1: Calculate number. 8 tens = 80, 8 ones = 8, total = 88 Step 2: Number after 88 is 89 Answer: D) 89 7. Problem: [18+3] is the same as _____ more than 20? Step 1: Calculate 18+3 = 21 Step 2: Difference from 20 is 21 - 20 = 1 Answer: B) 1 8. Problem: The angle which measures greater than 180° and less than 360° is called? Answer: D) Reflex angle 9. Problem: Which number is neither prime nor composite? Answer: D) 1 10. Problem: Reena had numbers 4,7,9,5. Using each once, with 9 at ten's place, find largest number. Step 1: Place 9 at tens place: _ 9 _ _ Step 2: Use remaining digits 4,7,5 to maximize number. Thousands place: 7 (largest) Units place: 5 (largest remaining) Hundreds place: 4 Number: 7 9 4 5 = 7945 Check options: closest is C) 7954 (9 at tens place but 5 at hundreds place) Step 3: Try 7 9 5 4 = 7954 (valid, 9 at tens place) Answer: C) 7954 13. Problem: Johnny planted trees 8 cm apart, distance between first and last tree 80 cm. Find number of trees. Step 1: Distance between trees = 8 cm Step 2: Distance between first and last tree = (number of trees - 1) \times 8 = 80 Step 3: Solve for number of trees. number of trees - 1 = \frac{80}{8} = 10 number of trees = 10 + 1 = 11 Answer: D) 11 14. Problem: Find A and B in subtraction: 6 A 1 4 - 3 7 4 B = 2 9 6 6 Step 1: Subtract units place: 4 - B = 6 (borrow if needed) Since 4 < 6, borrow 1 from tens place: (14 - B) = 6 \Rightarrow B = 8 Step 2: Tens place: (1 - 1 from borrow) - 4 = 6 (borrow from hundreds) (0 - 4) not possible, borrow 1 from hundreds: (10 - 4) = 6 correct Step 3: Hundreds place: (A - 1 from borrow) - 7 = 9 A - 1 - 7 = 9 \Rightarrow A - 8 = 9 \Rightarrow A = 17 (not possible, borrow from thousands) Step 4: Thousands place: (6 - 1 from borrow) - 3 = 2 (5 - 3) = 2 correct Step 5: Adjust A with borrow: A = 7 Answer: B) 7, 8 15. Problem: Find values of [dog sitting], [donkey], and [horse] given: [dog] + [dog] + [donkey] = 786 [dog] + [donkey] + [horse] = ? Step 1: Let [dog] = D, [donkey] = K, [horse] = H Step 2: From first equation: 2D + K = 786 Step 3: Express K in terms of D: K = 786 - 2D Step 4: Second equation: D + K + H = ? Substitute K: D + (786 - 2D) + H = 786 - D + H Step 5: Without more info, cannot find exact value of H or the sum. Answer: Cannot determine exact value without more information. Final answers: 1) C 2) A 3) C 4) D 5) C 6) D 7) B 8) D 9) D 10) C 13) D 14) B 15) Insufficient data