771.
In ∆ DEW, AB∥EW. If AD = 4 cm, DE = 12 cm and DW = 24 cm, then find the length of DB.
(A)
7 cm
(B)
6 cm
(C)
9 cm
(D)
8 cm
772.
The sum of the digits of a two−digit number is 9. The number obtained by interchanging its digits exceeds the given number
by 45, then the original number is:
(A)
18
(B)
27
(C)
36
(D)
54
773.
A vertical pole of length 6 m casts a 4 m long shadow on the ground. At the same time, a tower casts a 28 m long shadow.
Find the height of the tower.
(A)
42 m
(B)
32 m
(C)
36 m
(D)
48 m
774.
Three cubes each of side 5 cm are joined end to end. The surface area of the resulting cuboid is:
(A)
150 cm2
(B)
175 cm2
(C)
350 cm2
(D)
75 cm2
775.
Pomegranate juice contains 10% sugar solution and orange juice contains 30% sugar solution. What is the percentage of
sugar solution in a mixture of two litres of pomegranate juice and three litres of orange juice?
(A)
22%
(B)
25%
(C)
20%
(D)
40%
776.
In an election, there were only two candidates. One of the candidates secured 44% of the votes and is defeated by the other
candidate by 1440 votes. If there were no invalid votes. then the total number of votes polled is:
(A)
15000
(B)
12000
(C)
14000
(D)
13000
777.
From a circle of radius r units, the largest equilateral triangle is cut out. What is the length (in units) of the side of the
triangle?
(A)
(B)
(C)
(D)
778.
By what percentage should a racer increase the speed to reduce the time by 25% to cover a fixed distance?
(A)
(B)
(C)
(D)
779.
The population of a village was 4,00,000. It increased by 20% in the first year and increased by 30% in the second year. Its
population after two years is _______.
(A)
6,25,000
(B)
6,24,000
(C)
5,40,000
(D)
5,20,000
780.
A laptop charger is sold for Rs.2,540 in cash or for a down payment of Rs.1,340 in cash together with Rs.1,205 to be paid
after one month. Find the rate of interest charged in the instalment scheme.
