If the area of rectangle is 200 sq cm and length is 20 cm, breadth is ____. A. 5 cm B. 10 cm C. 15 cm D. 20 cm Explanation: Breadth = area/length = 10.
If a sum amounts to Rs. 1331 in 3 years at 10% compound interest, principal is ____. A. Rs. 900 B. Rs. 1000 C. Rs. 1100 D. Rs. 1200 Explanation: 1000 × (1.1) ) )³ = 1331.
If a sum is invested at 10% for 3 years, simple interest is Rs. 300. Principal is ____. A. Rs. 800 B. Rs. 900 C. Rs. 1000 D. Rs. 1200 Explanation: SI = PRT/100 → P = 1000.
If loss is 10% and cost price is Rs. 500, selling price is ____. A. Rs. 450 B. Rs. 400 C. Rs. 420 D. Rs. 480 Explanation: SP = 90% of 500.
If profit is 25% and cost price is Rs. 800, selling price is ____. A. Rs. 900 B. Rs. 1000 C. Rs. 950 D. Rs. 850 Explanation: SP = 1.25 × 800 = 1000.
If selling price is Rs. 720 and profit is 20%, cost price is ____. A. Rs. 500 B. Rs. 600 C. Rs. 650 D. Rs. 700 Explanation: CP = 720/1.2 = 600.
If cost price is Rs. 600 and loss is 20%, selling price is ____. A. Rs. 480 B. Rs. 500 C. Rs. 520 D. Rs. 550 Explanation: SP = 80% of 600 = 480.
If a person travels half distance at 40 km/h and half at 60 km/h, average speed is ____. A. 48 km/h B. 50 km/h C. 52 km/h D. 55 km/h Explanation: Harmonic mean = 48 km/h.
If a man walks at 5 km/h, how far will he walk in 3 hours? A. 10 km B. 15 km C. 20 km D. 25 km Explanation: Distance = speed × time = 15 km.
If a car travels at 72 km/h, what is its speed in m/s? A. 10 B. 15 C. 20 D. 25 Explanation: 72 × 5/18 = 20 m/s.