The sample space is = {TTT, TTH, THT, HTT, THH, HTH, HHT, HHH} Let E is the event of getting atleast one head Then E = {TTH, THT, HTT, THH, HTH, HHT, HHH} P(E) = n(E) / n(S) = 7/8.
‘A’ invested Rs. 4680 for ‘x’ months while ‘B’ invested Rs. 780 less amount than ‘A’ for (x + 5) months....
The circumference of a circle is 100cm. What will be the length of each side of the inner square of this circle?
A right circular cone & a right circular cylinder have equal base & equal height. If the radius of the base & the height are in the ratio 8:...
The ratio of length to breadth of a rectangle is 4:3 respectively. Perimeter of rectangle is 84 m. If each side of a square is 33.33% less than the brea...
The length of a rectangle, area of which is 315 cm2, is equal to the radius of a circle of area 3850 cm2. Find the perimeter of th...
Find the number of silver balls of diameter 2 cm each, that can be made from a sphere of diameter 32 cm?
Determine the volume of a cube if the total cost to paint its four walls is Rs. 1280, given that the painting rate is Rs. 5 per square meter.
A rectangular reservoir of 2800 m3 capacity has length and height equal to 10 m and 40 m respectively. if 420 m3 of water is taken...
A circular wire of diameter 70 cm is folded in the shape of a rectangle whose sides are in the ratio 3:2. Find the area enclosed by the rectangle.
