1891.
Two cubes, each of edge 5 cm, are joined face to face. Find the surface area of the cuboid thus formed.
(A)
(B)
(C)
(D)
1892.
Two triangles ABC and DEF are similar. The smallest side of ABC is equal to 15 units. If the sides of ABC are in the ratio 3 ∶ 4
∶ 5, and the area of DEF is half of the area of ABC, then what is the largest side of DEF (in units)?
(A)
(B)
(C)
(D)
1893.
If A : B = 2 : 3 and B : C = 7 : 8, find A : C.
(A)
(B)
(C)
(D)
1894.
The value of a machine depreciates every year by 5%. If the present value of the machine is ₹80,000, what will be its value
after 2 years?
(A)
₹72,200
(B)
₹74,400
(C)
₹74,000
(D)
₹72,000
1895.
A man can row a boat at speed 8 km/h in still water. It takes thrice as long to row upstream as it does to row downstream.
Find the speed of the stream (in km/h).
(A)
5
(B)
4
(C)
6
(D)
3
1896.
The inner and outer radii of a hemispherical wooden bowl are 6 cm and 8 cm, respectively. Its entire surface has to be
polished and the cost of polishing π cm2 is Rs.50. How much will it cost to polish the bowl?
(A)
Rs.12,000
(B)
Rs.10,000
(C)
Rs.11,600
(D)
Rs.11,400
1897.
Which of the following statements is INCORRECT about the circle?
(A)
(B)
(C)
(D)
1898.
Ram is 20 years older than Rahul. ‘n’ years ago Ram was thrice as old as Rahul. ‘2n’ years from now the ratio of the ages of
Ram and Rahul will be 15 : 11. What is the value of ‘n’?
(A)
15
(B)
10
(C)
30
(D)
20
1899.
The distance between the centres of two circles is 81 cm, and their radii are 42 cm and 51 cm. What is the length (in cm) of
the direct common tangent to the circles?
(A)
(B)
(C)
(D)
1900.
In an election contested by two candidates, one candidate got 42% of the total votes and still lost by 800 votes. Find the
total number of votes that were cast.
