Related Questions

If the first and sixth term of a geometric series are respectvily 1/2 and 1/64, then the common ratio is____
A 1/4
B 1/2
C 1
D 2
The average of the first and the second of three numbers is 15 more than the average of the second and the third of these numbers. What is the difference between the first and the third of these three numbers?
A 15
B 45
C 60
D None of these
The average of the first and the second of three numbers is 15 more than the average of the second and the third of these numbers . what is the difference between the first and the third of these three numbers?
A 15
B 45
C 60
D None of them
The average of the first and the second of three numbers is 15 more than the average of the second and the third of these numbers .what is the difference between the first and the third of these three numbers?
A 15
B 45
C 60
D None of these
Of the three numbers, the average of the first number and the second number is 37 more than the average of second number and third number. What is the difference between the first and the third number?
A 74
B 73
C 37
D cannot be determined
Three boys agree to divide a bag of marbles in the following manner. The first boy takes one more than half the marbles. The second takes a third of the number remaining. The third boy finds that he is left with twice as many marbles as the second boy. The original number of marbles is-
A 38
B 36
C 32
D Cannot be determined
If one angle of a triangle is three times a second angle and the third is 20 degrees more than the second angle, the second angle, in degrees, is
A 32
B 36
C 4
D None of these
The sum of three numbers is 98. If the ratio of the first to the second is 2 : 3 . And that of the second to the third is 5 : 8 , then the second number is -
A 30
B 20
C 10
D 15
The sum of three numbers is 98 . If the ratio of the first to second is 2 :3 and that of the second to the third is 5 :8 , then the second number is -
A 10
B 20
C 40
D 30
Two men and women are entrusted with a task. The second man needs three hours more to cope up with the job than the second man and the woman would need working together. The first man, working alone, would need as much time as second man and the woman working together. The first man working alone, would spend eight hours less than the double period of the time second man would spend working alone. How much time would the two men and the women need to complete the task if they all asked together?
A 1 hour
B 2 hours
C 3 hours
D 4 hours
E 5 hours

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