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Let the present income of ‘A’ be Rs. x Therefore, x(1 + 20/100)2 = 86400 Or, x = 86400/(1.2)3 = 60000 Therefore, his income a year before from now = 60000/1.2 = Rs. 50000
If the volume of a cylinder is 384π and the ratio of radius to its height is 4:3 then find the curved surface area of cylinder?
A well with 30 metre inner diameter is dug 6 m deep. Earth taken out of it, has been evenly spread all around it to a width of 15 m to form an embankmen...
The ratio of the length of a rectangle, breadth of the rectangle and the diameter of a circle is 10:8:4. If the area of the circle is 154 cm^2 , then wh...
The volume of a cuboid whose length, breadth, and height are in the ratio 5:3:2, respectively, is 3,000 cm³. Find the lateral surface area of the cuboi...
A rectangular park 60 m long and 40 m wide has two concrete crossroads running in the middle of the park and rest of the park has been used as a lawn. I...
A right circular cylindrical tank of radius 'R' meter and height 'R + 7' meter contains oil. The entire quantity of oil is taken out from the cylindric...
The radius of a right circular cylinder is 4 times its height. If the height of the cylinder is 2.5 cm, then what is the volume of the cylinder? (in cub...
A, B and C enter into a partnership, A invest 2X + 5000, B invest X + 15000 and C invest 5X + 2000 for one year if B share is 10000 from total profit of...
If the volume of a cuboidal tank is 1620 m3 and the ratio of the length, width and height of tank is 5:4:3 respectively then find the height ...
