From I and II Let the speed of the boat be x km/hr Speed of the stream be y km/hr ∴ Speed of upstream x – y = 120/5 = 24……(i) Speed downstream x + y = 120/3 = 40 …….(ii) From eq. (i) and (ii), we get x = 32 km/hr and y = 8 km/hr
Each side of a rhombus is 20cm long and the length of one of its diagonals is 24cm, then find the area of the rhombus.
A frustum of a cone has a lower base radius of 12 cm, an upper base radius of 8 cm, and a height of 15 cm. Find the total surface area of the frustum.
In a rectangular floor of length and breadth of 16 metres and 7 metres, respectively, square tiles each of 2 metre edge length are to be laid. If the co...
If the area of a triangle is 864 cm2 and base: corresponding altitude is 3:4, then the altitude of the triangle is:
The area of a square field is 800 sq m. How long in seconds will a lady take to cross the field diagonally at the rate of 4.8 km/hr?
The diameter of the base of a cylindrical drum is 14 cm and its height is 12 cm. The drum is full of water and the water from the drum is transferred to...
The area of a square is 2116 square metres. The breadth of a rectangle is half of the side of the square and the length of the rectangle is thrice its b...
Angle bisectors of Q and R meet at point S, inside the triangle PQR. If angle QSR = 116˚ , then the measure of angle P is:
A certain sum is deposited for 4 years at a rate of 10% per annum on compound interest compounded annually. The difference between the interest at the e...
The area of a rhombus is 168 cm2. The length of one of its diagonals is 28 cm. The length of the other diagonal is: