Question
Income of A is twice the income of B. B and A spend 60%
and 70% respectively of their incomes. Find the savings of A, if B saves Rs. 15000 in a month.Solution
Let, income of B be Rs. ‘x’ Expenditure of B = 0.6x So, 0.40x = 15000 x = Rs. 37500 Income of A = 2 × 37500 = Rs. 75000 Savings of A = 30% of 75000 = Rs. 22500
The perimeter of a rhombus is 36 m and its height is 8 m. Its area is:
The ratio of the diagonals of a rhombus is 5:6, and the difference between their lengths is 7 cm. Find the area of the rhombus.
The radius of a circle is equal to the radius of base of a cone. If the diameter of the circle is 35 cm and the height of cone is 18 cm, then find the v...
The side of a square is 16cm. A square is formed by joining the mid points of the sides of the square and in the same process, indefinite number of squa...
Perimeter of a square field is 160 meters and the area of a rectangular field is 30% more than that of the square field. Find the area (in m2...
- The ratio of radius of a circle and side of a square is in the ratio 7:8 respectively. The perimeter of the square is 20 meters more than the perimeter of ...
A cone and a hemisphere have the same base radius and the same height. If the total volume of both is 2,160 cm³, find the radius.
A rectangular lawn is 60 meters X 50 meters and has two roads, each 2 meters wide, in the middle of it, one parallel to its length and the other paralle...
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 solid metallic rectangular block of dimensions 112 cm × 44 cm × 25 cm is melted and recast into a cylinder of radius 35 cm. The curved surface area ...