Question
Four persons βAβ, βBβ, βCβ, and βDβ have
different amounts with them. βDβ has twice the amount than that of βAβ. The amount βBβ has is 12.5% more than that of βDβ. The amount βCβ has is equal to the average amount all four people have. If the sum of the average amount all four have and the amount βAβ has is Rs. 1100, then find the amount βDβ has.Solution
Let βAβ has Rs. a Therefore, amount possessed by βDβ = Rs. 2a Amount possessed by βBβ = 1.125 Γ 2a = Rs. 2.25a Let the average amount possessed by all four be Rs. x Therefore, amount possessed by βCβ = Rs. x According to the question, 2.25a + 2a + a = 4x β x Or, 5.25a = 3x Or x/a = 7/4 Therefore, a = 1100 Γ 4/11 = Rs. 400 Amount possessed by βDβ = 2a = Rs. 800.
0.3Μ 2Μ + 0.54Μ 8Μ - 0.1Μ 9Μ is equal to :
A large metallic sphere of radius 21 cm is melted and used to make small cuboidal bars of dimensions 7 cm Γ 6 cm Γ 3 cm. Find the number of bars that ...
Each side of square βAβ is 5 cm less than that of square βBβ. The perimeter of a rectangle is 2 times the difference of the perimeters of the tw...
Perimeter of a square field is 120 meters and the area of a rectangular field is 20% more than that of the square field. Find the area (in m2...
If a triangle with base 15 cm has the same area as a circle with radius 15 cm, then the corresponding altitude (in cm) of the triangle is:Β
The lateral surface area of a cube is 400 cm2. The length of a cuboid is 50% more than the side of the cube. The breadth of the cuboid is 12 ...
If a triangle with base 4 cm has the same area as a circle with radius 4 cm, then the corresponding altitude (in cm) of the triangle is:Β
If the angular diameter of the sun is 20, how far from the eye a coin of radius 4.95 cm be kept to hide the sun?
A racetrack is in the shape of a rectangle with length of 48 meters and area of 6000 mΒ 2. A car takes 10 seconds to make one lap around the ...
The area of a circle is 1.54 cm2. Find the perimeter of the minor sector that is subtended by an angle of 90o. (take Ο = 22/7)
Relevant for Exams:
