ANSWERS
Solution: 3(7) + 5 = 21 + 5 = 26
Answer: c) 26
2. IGNORE THIS QUESTION
3. Solve the equation: 2x + 7 = 15.
Solution: 2x = 15 - 7 = 8, x = 8/2 = 4
Answer: a) x = 4
4. Find the area of a rectangle with length 10 cm and width 5 cm.
Solution: Area = length × width = 10 cm × 5 cm = 50 cm²
Answer: c) 50 cm²
5. What is the circumference of a circle with a radius of 6 units?
Solution: Circumference = 2Ï€ × radius = 2Ï€ × 6 = 12Ï€ units
Answer: b) 18Ï€ units
Read More: MDCAT Quiz No. 5
6. Solve the inequality: 3x + 4 < 10.
Solution: 3x < 10 - 4 = 6, x < 6
Answer: a) x < 6
7. If a = 4 and b = 3, find the value of (a² + b²) / (ab).
Solution: (a² + b²) / (ab) = (4² + 3²) / (4 × 3) = (16 + 9) / 12 = 25 / 12
Answer: b) 25/12
8. The sum of three consecutive even integers is 48. What is the largest integer?
Solution: Let the first even integer be x. Then the three consecutive even integers are x, x + 2, and x + 4. Their sum is x + (x + 2) + (x + 4) = 48.
Solving for x: 3x + 6 = 48, 3x = 42, x = 14
The largest integer is x + 4 = 14 + 4 = 18
Answer: c) 18
9. If sinθ = 3/5, find cosθ.
Solution: Since sinθ = opposite/hypotenuse, we can use the Pythagorean identity sin²Î¸ + cos²Î¸ = 1.
cos²Î¸ = 1 - sin²Î¸ = 1 - (3/5)² = 1 - 9/25 = 16/25
cosθ = √(16/25) = 4/5
Answer: a) 4/5
10. A car travels at an average speed of 60 km/h. How far will it travel in 3 hours?
Solution: Distance = speed × time = 60 km/h × 3 hours = 180 km
Answer: c) 180 km