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
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
The missing term in the series 2, 7, 24, 77, ?, 723 is
238
542
432
320
Starting from point A, Ajit walks 14 metres towards west, he then turns to his right and walks 14 metres and then turns to his left and walks 10 metres. He again turns to his left and walks 14 metres and reaches to the point E. The shortest distance between A and E is
38
52
24
42
A person writes all the numbers from 0 to 99. The number of times digit 3 will be written is
19
20
18
21
The world population growth rate at a certain reference year was 3.5%. Assuming exponential growth of population, after how many years, the population of the world would have increased by a factor 16 ?
~ 160 years
~ 80 years
~ 320 years
~ 40 years
Anil is twice as old as Sunita. Three years ago, he was three times as old as Sunita. The present age of Anil is
12 years
16 years
6 years
8 years
The mean marks obtained by a class of 40 students is 65. The mean marks of half of the students is found to be 45. The mean marks of the remaining students is
60
70
65
85
In this series
6, 4, 1, 2, 2, 8, 7, 4, 2, 1, 5, 3, 8, 6, 2, 2, 7, 1, 4, 1, 3, 5, 8, 6, how many pairs of successive numbers have a difference of 2 each ?
8
6
4
5