There are n terms in an arithmetic progression. The n terms of the arithmetic progression are now distributed into eight sub-series S1, S2 ……..and S8 as follows. The 1st, 9th, 17th terms and so on go into S1; the 2nd, 10th, 18th terms and so on go into S2; the 3st, 11th, 19th  terms and so on go into S3, and so on for S4 till S8. If for exactly three of the eight sub-series, the average of the sub-series is a term of the same sub-series, which of the following could be a possible value of n

1.  37

2.  53

3.  49

4.  50

5.   51

View Answer  
5
Correct Answer :

51


Explanation :
No Explanation available for this question

The present ages of A,B and C are in proportions 4 : 7 : 9. Eight years ago, the sum of their ages was 56. What are their present ages (in years)

1.  Insufficient data

2.   16, 30, 40

3.  16, 28 40

4.  16, 28, 36

View Answer  
4
Correct Answer :

16, 28, 36


Explanation :
No Explanation available for this question

What is the minimum value of the expression 2x2+3y2-4x-12y+18

1.  18

2.  10

3.  4

4.  0

5.  -10

View Answer  
5
Correct Answer :

4


Explanation :
No Explanation available for this question

One day the king summoned all the soldiers in his army and made them stand in a queue. To the first soldier, he gave three gold coins and to every subsequent soldier, he gave four gold coins more than what he gave to the previous soldier. Then the king ordered each soldier to distribute all the coins that he received among the peasants, if and only if it is possible to distribute the coins such that each peasant to whom the soldier distributes gets as many coins as the number of peasants to whom the soldier distributes the coins. If no two soldiers were allowed to distribute coins to the same peasant and there were a total of 4000 soldiers in the king's army, how many peasants received at least one gold coin

1.  386

2.  284

3.  576

4.  4000

5.  None of these

View Answer  
5
Correct Answer :

None of these


Explanation :
No Explanation available for this question

A person's present age is two-fifth of the age of his mother. After 8 years, he will be one-half of the age of his mother. What is the present age of the mother

1.  60

2.  50

3.  40

4.  30

View Answer  
4
Correct Answer :

40


Explanation :
No Explanation available for this question

A is as much younger than B and he is older than C. If the sum of the ages of B and C is 50 years, what is definitely the difference between B and A's age

1.  Data inadequate

2.  3 years

3.  2 years

4.  5 years

View Answer  
4
Correct Answer :

Data inadequate


Explanation :
No Explanation available for this question

Two cyclists, Arjun and Bhim, started towards O from P and Q respectively, along the path shown below, in opposite directions. They met for the first time at 9:00 a.m. at O. At this moment, they reversed their directions but maintained their respective initial speeds and met for the second time at 10:30 a.m., following which Arjun reached O for the second time 75 minutes after Bhim reached O for the second time. What is the ratio of the speeds of Arjun and Bhim

1.  1:2

2.  2:3

3.  3:4

4.  1:3

5.  Cannot be determined

View Answer  
5
Correct Answer :

2:3


Explanation :
No Explanation available for this question

Which of the following is NOT a possible number of regions into which three straight lines (of infinite extent) can divide a plane

1.  7

2.  6

3.  5

4.  4

5.  None of these

View Answer  
5
Correct Answer :

5


Explanation :
No Explanation available for this question

Sobha's father was 38 years of age when she was born while her mother was 36 years old when her brother four years younger to her was born. What is the difference between the ages of her parents

1.  6 years

2.  5 years

3.  4 years

4.  3 years

View Answer  
4
Correct Answer :

6 years


Explanation :
No Explanation available for this question

The average of the numbers of a set P, consisting of 20 numbers, is 20. There are 20 numbers in another set Q = {ai: i=1, 2, 3, …...20}. Now, all the 20 numbers, starting from a1 to a20, in that order, are shifted from the set Q to the set P, one after the other. During the process of shifting, it was observed that when the number ai was shifted from set Q to set P, the average of the numbers of set P increased by bi, where b(i+1)-bi = 1, for 1 £i £19. If bi=2, what is the average of the original 20 numbers of set Q

1.  250

2.  230

3.  480

4.  240

5.  62

View Answer  
5
Correct Answer :

480


Explanation :
No Explanation available for this question
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