41.
The price of oil is increased by 25%. If the expenditure is not allowed to increase, the ratio between the reduction in consumption and the original consumption is
A
1 : 4
B
1 : 3
C
1 : 6
D
1 : 5
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The price of oil is increased by 25%. If the expenditure is not allowed to increase, the ratio between the reduction in consumption and the original consumption is
1 : 4
1 : 3
1 : 6
1 : 5
Find the wrong number in the sequence
125, 127, 130, 135, 142, 153, 165
153
130
165
142
In a college having 300 students, every student reads 5 newspapers and every newspaper is read by 60 students. The number of newspapers required is
exactly 5
at most 20
exactly 25
at least 30
How many numbers between 100 and 300 begin or end with 2?
180
110
100
120
There are 10 lamps in a hall. Each one of them can be switched on independently. The number of ways in which hall can be illuminated is
1023
2^10
10^2
10 !
If the side of the square increases by 40%, then the area of the square increases by
40 %
96 %
196 %
60 %
What is the number that comes next in the sequence?
2, 5, 9, 19, 37, __
74
76
50
75
Four pipes can fill a reservoir in 15, 20, 30 and 60 hours respectively. The first one was opened at 6 AM, second at 7 AM, third at 8 AM and the fourth at 9 AM. When will the reservoir be filled ?
11 AM
12 Noon
1:30 PM
1 PM
If Ram knows that y is an integer greater than 2 and less than 7 and Hari knows that y is an integer greater than 5 and less than 10, then they may correctly conclude that
y can be exactly determined
there is no value of y satisfying these conditions
y may be any of three values
y may be either of two values
Which is the number that comes next in the following sequence?
2, 6, 12, 20, 30, 42, 56, …………
64
70
60
72
Let a means minus (–), b means multiplied by (ᵡ), C means divided by (÷) and D means plus (+). The value of 90 D 9 a 29 C 10 b 2 is
12
10
8
None of the above
The sum of the ages of two persons A and B is 50. 5 years ago, the ratio of their ages was 5/3. The present age of A and B are
30, 20
40, 10
38, 12
35, 15
The number of observations in a group is 40. The average of the first 10 members is 4.5 and the average of the remaining 30 members is 3.5. The average of the whole group is
15/4
6
4
15/2
A group of 7 members having a majority of boys is to be formed out of 6 boys and 4 girls. The number of ways the group can be formed is
100
90
110
80
The missing number in the series :
0, 6, 24, 60, 120, ?, 336, is
240
280
220
210
The mean of four numbers a, b, c, d is 100. If c = 70, then the mean of the remaining numbers is
85/2
170/3
110
30
The odd numbers from 1 to 45 which are exactly divisible by 3 are arranged in an ascending order. The number at 6th position is
24
33
18
36
The missing number in the series
40, 120, 60, 180, 90, ?, 135 is
110
105
270
210
In a certain cricket tournament 45 matches were played. Each team played once against each of the other teams. The number of teams participated in the tournament is
10
14
8
12
In certain city the Taxi charges comprise of a fixed charge and the charge of the distance travelled. A person paid Rs.156 for a journey of 16 km and another person paid Rs.204 for the journey of 24 km. The amount paid by a passenger who has travelled 30 km is
248
236
240
256