Question
In an examination having total 300 questions, in the
first section having 180 questions. A student got 75% marks in first section, but he got 83% marks in the second section. Find the total percentage of marks in the examination.Solution
Total number of questions 300, in first section there are 180. So, in second section will be 120 questions. First section                 Second section 180                              120 180×75/100                  120×83/100 135                              99.6 Total got marks =135+99.6=234.6 Percentage of got marks = (234.6/300) ×100 =78.2%
The radius of the base of a solid right circular cylinder is 7 cm, and its height is four times the radius of the base. Determine...
A sphere 'A' has a volume of 256 cm³, and its radius is 'r' cm. If the radius of another sphere 'B' is (r + 1) cm, calculate the curved surface area (i...
The area of four walls of a room is 144 cm2. If the length and breadth of the room were equal and the height of the room is 4 cm, then what i...
- Among the following two shapes, which has a greater volume?
I) A cuboid measuring 4 cm × 6 cm × 12 cm
II) A cube with each side measuring 7 cm<... The lengths of a pair of parallel sides of a trapezium are respectively 22 cm and 18 cm, and the perpendicular distance between these two sides is 15 cm...
If 2156 is added in a number then number become 344(4/9)% of itself. Find the original number?
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?
'A storage room has a floor area covered with tiles of size 60 cm × 40 cm. If the room measures 4.8 meters in length and 3.2 meters in width, how many ...
Angle bisectors of Q and R meet at point S, inside the triangle PQR. If angle QSR = 132Ëš , then the measure of angle P is:
If the radius of a spherical ice cream scoop is 10 cm, then find the volume (in cm³) of the ice cream scoop. (Use π = 3.14)