A rectangular field 30 m long and 20 m broad. How much deep it should be dug so that from the earth taken out, a platform can be formed which is 8 m long, 5.5 m broad and 1.5 m high where as the earth taken out is increase by 10/5? September 23, 2025 by Admin A. 12 cm B. 10 cm C. 18 cm D. 24 cm ✅ The correct answer is option B. 10 cm. 30 * 20 * x = (8 * 5.5 * 1.5)/2
Surface area of two spheres are in the ratio 1:4 what is the ratio of their volumes? September 23, 2025 by Admin A. 1:64 B. 1:8 C. 1:4 D. 8:1 ✅ The correct answer is option B. 1:8.
A brick measures 20 cm * 10 cm * 7.5 cm how many bricks will be required for a wall 25 m * 2 m * 0.75 m? September 23, 2025 by Admin A. 24000 B. 23000 C. 22000 D. 25000 ✅ The correct answer is option D. 25000. 25 * 2 * 0.75 = 20/100 * 10/100 * 7.5/100 * x
The diameters of two spheres are in the ratio 1:2 what is the ratio of their surface area? September 23, 2025 by Admin A. 1:2 B. 1:4 C. 2:1 D. 4:1 ✅ The correct answer is option B. 1:4.
The surface area of a cube is 726m2, its volume is? September 23, 2025 by Admin A. 1300 m3 B. 1331 m3 C. 1452 m3 D. 1542 m3 ✅ The correct answer is option B. 1331 m3. 6a2 = 726
The diameters of two spheres are in the ratio 1:2 what is the ratio of their volumes? September 23, 2025 by Admin A. 3:4 B. 9:16 C. 1:8 D. 4:3 ✅ The correct answer is option C. 1:8.
Surface area of a sphere is 2464 cm2. If its radius is doubled, then the surface area of _________?the new sphere will be September 23, 2025 by Admin A. 4920 cm2 B. 4727 cm2 C. 9856 cm2 D. 19712 cm2 ✅ The correct answer is option C. 9856 cm2.
The sides of a cube are in the ratio 1:2 the ratio of their volume is__________? September 23, 2025 by Admin A. 1:2 B. 1:4 C. 1:8 D. 2:1 ✅ The correct answer is option C. 1:8.
The height of two right circular cones are in the ratio 1:2 and their perimeters of their bases are in the ratio 3:4, the ratio of their volume is_________? September 23, 2025 by Admin A. 3:8 B. 9:16 C. 9:32 D. 9:64 ✅ The correct answer is option C. 9:32.
If in a box of dimensions 6 m * 5 m * 4 m smaller boxes of dimensions 60 cm * 50 cm * 40 cm are kept in it, then what will be the maximum number of the small boxes that can be kept in it? September 23, 2025 by Admin A. 500 B. 1000 C. 900 D. 600 ✅ The correct answer is option B. 1000.