The difference between simple interest and compound interest for 2 years is ____. A. Always zero B. Always positive C. Always negative D. Cannot determine Explanation: CI > SI for the same conditions.
If the ratio of boys to girls is 3:2 and total students are 50, number of girls ____. A. 10 B. 15 C. 20 D. 25 Explanation: Total parts = 5.
If the cost price is Rs. 200 and selling price is Rs. 240, profit percent ____. A. 10% B. 15% C. 20% D. 25% Explanation: Profit = 40 → 40/200 ×100.
A man travels 60 km in 2 hours and 40 km in 1 hour. Average speed ____. A. 40 km/h B. 45 km/h C. 50 km/h D. 55 km/h Explanation: Total distance/total time.
If a number is increased by 50%, it becomes 150. The number ____. A. 80 B. 90 C. 100 D. 120 Explanation: 1.5x = 150.
The area of a square with side 8 cm ____. A. 16 cm² B. 32 cm² C. 48 cm² D. 64 cm² Explanation: Area = side².
The perimeter of a square with side 8 cm ____. A. 16 cm B. 24 cm C. 32 cm D. 64 cm Explanation: Perimeter = 4 × side.