Let the speed of the boy in still water be x kmph. Then, (x + 6) × 3 = (x – 6) × 5 => 3x + 18 = 5x - 30 => 2x = 48 => x = 24 kmph
The ratio of the breadth to the length of a rectangular field is 2:3. The total cost of cutting the grass of the field at the rate of Rs 6 per m2
The ratio of length to breadth of a rectangle is 5:4, respectively. Perimeter of rectangle is 108 cm. If each side of a square is 25% more than the brea...
0.3̅2̅ + 0.54̅8̅ - 0.1̅9̅ is equal to :
A rectangular frame of size 100 cm (length) x 120 cm (breadth) is to be surrounded by stickers of 2 cm x 2 cm size. How many stickers would be required ...
If the numerical value of twice the curved surface area of a right circular cylinder is equal to the numerical value of its volume, then what is the num...
A race track is in the shape of a rectangle with length of 25 metres and area of 4500 m2. A car takes 10 seconds to make one lap around the p...
Sum of first 10 terms of a GP is equal to the sum of the first 12 terms in the same GP. Sum of the first 15 terms is 31, what is the third term in the GP?
The volume of the conical tent is 1232 m3 and the area of its base is 154m2.Find the length of canvas required to build the tent. ...
What is the total surface area of a pyramid whose base is square with a side of 8 cm and the height of the pyramid is 3 cm?
A rectangular sheet measuring 44 cm by 38 cm has a square with a side length of 3 cm removed from each of its corners. The altered sheet is then folded ...
