Two numbers are such that their difference, their sum and their product are in the ratio of 1 : 7 : 24. The product of the numbers is
24
36
48
48
A, B, C are partners in a business. During a particular year. A received one-third of the profit, B received one-fourth of the profit and C received the remaining Rs. 5000. How much amount of money did A receive?
Rs. 1000
Rs. 3000
Rs. 4000
Rs. 4000
Three horses are tethered at 3 corners of a triangular plot of land having sides 20m, 30m and 40m each with a rope of length 7m. The area (in m2) of the region of this plot, which can be grazed by the horses, is
75
77
77
A wire, when bent in the form of a square, encloses a region of area 121 cm2. If the same wire is bent into the form of a circle, then the area of the circle is
150 cm2
152 cm2
154 cm2
154 cm2
The ratio of the area of a sector of a circle to the area of the circle is 1 : 4. If the area of the circle is 154 cm2, the perimeter of the sector is
20 cm
25 cm
36 cm
36 cm
If a sphere of radius r is divided into four identical parts, then the total surface area of the four parts is
4πr² square unit
2πr² square unit
8πr² square unit
6πr² square unit
A sum of money, deposited at some rate per cent per annum of compound interest, doubles itself in 4 years. In how many years will it become 16 times of itself at the same rate?
16
12
10
10
A.
16
x - 2x - 4 yrs
2x - 4x - 8 years
4x - 8x - 12 years
8x - 16- 16 years
What is the difference between the compound interest and simple interest on Rs. 4000 at 5% per annum for 2 years?
10
11
20
20
The simple and compound interest on a sum of money for 2 year are Rs. 8400 and Rs. 8652 respectively. The rate of interest per annum is
6%
7.5%
9%
9%