A number is divisible by 3 and 5. It must be divisible by ____. A. 8 B. 10 C. 15 D. 20 Explanation: LCM of 3 and 5.
The speed of a car is 60 km/h. Distance covered in 2 hours ____. A. 100 km B. 110 km C. 120 km D. 130 km Explanation: Distance = speed × time.
The compound interest on Rs. 1000 at 10% for 2 years ____. A. 200 B. 210 C. 220 D. 240 Explanation: CI = 1000(1.1²−1).
The simple interest on Rs. 1000 at 5% for 2 years ____. A. 50 B. 100 C. 150 D. 200 Explanation: SI = PRT/100.
If the ratio of ages of A and B is 3:5 and sum is 40, age of A ____. A. 10 B. 12 C. 15 D. 20 Explanation: Total parts = 8.
The area of a circle is 154 cm². Find its radius ____. A. 7 cm B. 14 cm C. 21 cm D. 28 cm Explanation: πr² = 154.
The perimeter of a rectangle is 100 cm and length is 30 cm. Breadth ____. A. 10 cm B. 15 cm C. 20 cm D. 25 cm Explanation: 2(L+B)=100.