Question
If the brick size is 25 cm×12 cm×9 cm, then how many
bricks are required to construct a wall of length 10 m, breadth 22.5 cm and height 6 m?Solution
Volume of one brick: 25 x 12 x 9 = 2700 cm³ Volume of the wall: 1000 x 22.5 x 600 =13,500,000 cm³ Number of bricks: =13,500,000/2700 = 5000 5000 bricks are required.
The measure of an angle is one-third of its supplementary angle. Find its measure.
In the given figure, ABC is a right angled triangle. ∠ ABC = 90 0and ∠ ACB = 60 0. If the radius of the smaller circle is 2 cm...
MN is a diameter of a circle with centre O. The tangent at 'P' meets MN produced at 'Q'. If ∠PMN = 44 ° , then find ∠PNQ.
If the curved surface area of a cylinder is 126π cm² and its height is 14 cm. then, what is the volume of the cylinder?
AB is the diameter of a circle with centre 'O'. PQ is a chord that cuts AB at 'C'. If radius of the circle is 7.5 cm and AC:CB = 3:2, the find the lengt...
In the given figure, O is centre of the circle. Circle has 3 tangents. If ∠ QPR = 45 0 , then what is the value (in degrees) of ∠ QOR ?
ABCD is a square. P, Q, R and S are points on the sides AB, BC, CD and DA respectively such that AP = BQ = CR = DS. Angle SPQ equal to ?
Two angles are complementary. The larger angle is 6° less than thrice the measure of the smaller angle. What is the measure of the larger angle?
In a circle with center O and radius 10 cm, two chords AB and CD are parallel and 6 cm apart. If the length of chord AB is 16 cm, what is the length of ...
Relevant for Exams:
