Test-Series - reasoning

Test Number 17/24

Q: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z If the first five letters of English alphabet are reversed , so are the next five and so on and last letter is left unchanged then what will be 2nd letter to the left of 17th letter from the right?
A. S
B. G
C. H
D. R
Solution: 2nd letter to the left of 17th letter from the right means (2 + 17 = ) 19th letter from the right = (26 - 19 + 1 =) 8th letter from the left end , i.e H.  Thus, 8th letter falls into the second section of the reversed sequence. Now, the sequence FGHIJ is reversed and becomes JIHGF. Clearly, position of H remains unchanged. Hence the required letter is H.
The correct answer is: C) H
Q: In the following question, a matrix of certain characters is given.These characters follow a certain trend, row-wise or column wise.Find out this trend and choose the missing character accordingly. 72 24 6 96 16 12 108 ? 18
A. 7
B. 9
C. 12
D. 11
Solution:  In the first row, 72 ÷ (24/2) = 72 ÷ 12 = 6.In the second row, 96 ÷ (16/2) = 96 ÷ 8 = 12.Let the missing number in the third row be y.Then, 108 ÷ (y/2) = 18  or  y/2 = 108/18 = 6  or  y = 12.
Q: 34 is related to 12 in the same way as 59 is related to
A. 45
B. 38
C. 26
D. 14
Solution: The second number is the product of the digits of the first.
The correct answer is: A) 45
Q: In what proportion would Raj, Karan and Altaf distribute profit among them ?  I. Raj gets two-fifth of the profit.  II. Karim and Altaf have made 75% of the total investment.
A. If the data in statement I alone are sufficient to answer the question
B. If the data in statement II alone are sufficient answer the question
C. If the data either in I or II alone are sufficient to answer the question;
D. If the data even in both the statements together are not sufficient to answer the question
Solution: Even both the statements together are not sufficient to answer the question.   
The correct answer is: D) If the data even in both the statements together are not sufficient to answer the question
Q: Two old friends, Jack and Bill, meet after a long time.   Jack: Hey, how are you man? Bill: Not bad, got married and I have three kids now   Jack: That’s awesome. How old are they?Bill: The product of their ages is 72 and the sum of their ages is the same as your birth date.   Jack: Cool … But I still don’t know.Bill : My eldest kid just started taking piano lessons.   Jack: Oh now I get it.How old are Bill’s kids ?
A. 3, 3, 8
B. 2, 6, 6
C. 1, 6, 12
D. 1, 8, 9
Solution: Let’s break it down. The product of their ages is 72. So what are the possible choices?   2, 2, 18 – sum(2, 2, 18) = 222, 4, 9 – sum(2, 4, 9) = 152, 6, 6 – sum(2, 6, 6) = 142, 3, 12 – sum(2, 3, 12) = 173, 4, 6 – sum(3, 4, 6) = 133, 3, 8 – sum(3, 3, 8 ) = 141, 8, 9 – sum(1,8,9) = 181, 3, 24 – sum(1, 3, 24) = 281, 4, 18 – sum(1, 4, 18) = 231, 2, 36 – sum(1, 2, 36) = 391, 6, 12 – sum(1, 6, 12) = 19   The sum of their ages is the same as your birth date. That could be anything from 1 to 31 but the fact that Jack was unable to find out the ages, it means there are two or more combinations with the same sum. From the choices above, only two of them are possible now.   2, 6, 6 – sum(2, 6, 6) = 143, 3, 8 – sum(3, 3, 8 ) = 14   Since the eldest kid is taking piano lessons, we can eliminate combination 1 since there are two eldest ones. The answer is 3, 3 and 8.
The correct answer is: A) 3, 3, 8
Q: A family consists of six members P, Q, R, X, Y and Z. Q is the son of R but R is not mother of Q. P and R are a married couple. Y is the brother of R. X is the daughter of P. Z is the brother of P. How many children does P have ?  
A. 1
B. 2
C. 3
D. 4
Solution: Q is the son of R but R is not the mother. So, R is the Father of Q. P is married to R  So, P is the wife of R and the mother of Q, X is the daughter of P and hence of R and so she is the Sister of Q, Y is the brother of R and Z is the brother of P.  Clearly, Q is the son of P and X is the daughter of P. So, P has two children. 
The correct answer is: B) 2
Q: In a family, there are six members A, B, C, D, E and F.  A and B are a married couple, A being the male member. D is the only son of C, who is the brother of A. E is the sister of D. B is the daughter-in-law of F, whose husband has died. How is E related to C ? 
A. Sister
B. Daughter
C. Cousin
D. Mother
Solution: A is a male and married to B. So, A is the husband and B is the wife. C is the brother of A. D is the son of C. E. who is the sister of D will be the daughter of C. B is the daughter-in-law of F whose husband has died means F is the mother of A.    Clearly. E is the daughter of C. 
The correct answer is: B) Daughter
Q: Tract of land used for raising crops or livestock.
A. A field
B. A farm
C. Both A & B
D. None of the above
Solution: A tract of land used for raising crops or livestockcan be called a field or a farm.  
The correct answer is: C) Both A & B
Q: Find the missing term in the following series ? 10000, 11000, 9900, 10890, ?, 10781
A. 10423
B. 9801
C. 10241
D. 10241
Solution: Clearly, alternatively we add and subtract 10% of a term to obtain the next term of the series.Thus, 10000 + (10% of 10000)= 11000; 11000 - (10% of 11000) = 9900; 9900 + (10% of 9900)  = 10890; 10890 - (10% of 10890) = 9801. 9801 + (10% of 9801)  = 9801+980 = 10781.So, missing term = 10890- (10% of 10890)= 9801.
The correct answer is: B) 9801

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