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Let the present age of Raman and his son be 9x and 4x respectively. => 9x – 4x = 25 ∴ x = 5 Required sum = 13 × 5 + 24 = 89 years
The length of a rectangular floor is four times its breadth. If Rs. 2160 is required to paint the floor at the rate of Rs. 15 per square metre, what is ...
The speed of two railway engines is in the ratio 5: 4. If they move on parallel tracks in the same direction and if the slower engine is ahead of the f...
Ms. Hema invests Rs. 8000 for six months at 20% per annum compounded quarterly. The total amount she gets after 6 months is :
The sum of the perimeters of a square and a rectangle is 120 metres. If the sum of the length and breadth of the rectangle is 28 cm, then find the area ...
The circumference of a circle is equal to the perimeter of a rectangle whose length and breadth are in ratio 9:7, respectively. If the area of the recta...
The breadth of a rectangular hall is 5/16 of its length. If the area of the floor is 80 sq. m., then the difference between the length and breadth of th...
Two sides of the triangle are 14.8 cm and 10 cm. If height of the triangle corresponding to 14.8 cm side is 8 cm find the area?
...A hemisphere has a radius of 10 cm. What is the total surface area of the hemisphere?
The ratio of the radii of the bases of a cylinder and a cone is 6:7, while the ratio of their heights is 7:9. What is the ratio of the volume of the cyl...
In a rectangular floor of length and breadth of 21 metres and 4 metres, respectively, square tiles each of 2 metre edge length are to be laid. If the co...