Start learning 50% faster. Sign in now
Let the incomes of ‘A’ and ‘B’ be Rs. 5x and Rs. 3x, respectively Let their expenditures be Rs. 3y and 4y, respectively According to the question, 5x – 3y = 43000….. (1) And, 3x – 4y = 6000…. (2) On solving equation (1) and (2), we get x = 14000 and y = 9000 Amount spent by ‘A’ and ‘B’, together on food = 0.25(5x + 3x) = Rs. 28000 Required expenditure = (3y + 4y) – 28000 = Rs. 35000
A large metallic sphere of radius 21 cm is melted and used to make small cuboidal bars of dimensions 7 cm × 6 cm × 3 cm. Find the number of bars that ...
The volume of cone is 1267.2 cm3. If its height is 2.1 cm then find the radius of the cone.
Find the number of silver balls of diameter 2 cm each, that can be made from a sphere of diameter 32 cm?
The radius of a cone is 7 cm, and its height is 24 cm. A sphere is inscribed in the cone, touching the base and the curved surface. Find the radius of t...
If the area of a square field is 729 m2, then find the diagonal of the square field.
Three circle of diameter 14 cm each, are bound together by a rubber band, as shown in the figure. The length of the rubber band, in cm, if it is stretch...
The perimeter of a rhombus is 56 m and its height is 5 m. Its area is:
The ratio of the curved surface area to the total surface area of a cone is 5:9. Determine the ratio of the radius of the cone to its slant height. (Use...
If the ratio of areas of two circle is 25:36, then the ratio of their circumferences will be: