Question
What will come in place of the question mark (?) of the
following equation, if β+β and βββ are interchanged and βΓβ and βΓ·β are interchanged? 15 + 9 Γ· 2 β 63 Γ 3 = ?Solution
15 + 9 Γ· 2 β 63 Γ 3Β 15 - 9 Γ 2 + 63 Γ· 3 15 - 9 Γ 2 + 21 15 - 18 + 21 36 - 18 = 18
A cylinder 84 cm long is made of steel. Its external and internal diameters are 10 cm and 8 cm respectively. What is the volume of the steel in the cyli...
Lateral surface area of a cube is 420 cm2 less than the lateral surface area of a cylinder. Height of cylinder is 2R cm and radius is R cm. I...
A cuboid has length 8 cm, breadth 6 cm and height 4 cm. Find the length of its space diagonal and its total surface area.
Each side of square βAβ is 8 cm less than that of square βBβ. The perimeter of a rectangle is 6 times the difference of the perimeters of the tw...
- If the edge of the cube is increased by 100%, then find the percentage increase in the volume of the cube.
When the breadth of a rectangle is reduced by 4cm (keeping the length constant), its area reduces by 72 cm2 and when the length is reduced by...
The circumference of a circle is equal to the perimeter of a rectangle whose length and breadth are in ratio 13:10, respectively. If the area of the rec...
A bus passes two bridges of length 500 m and 325 m in 90 seconds and 60 seconds respectively. The length (in m) of the bus is
Find the perimeter of a sector which forms a central angle of 90Β° in a circle of radius 28 cm.
(Use Ο = 22/7)An agricultural field is in the form of rectangle having length X1 meters and breadth X2 meters. (X1 and X2 are variables). If X1 + X2 = 40 meters, then...
Relevant for Exams:
