Reasoning

ISBT Reasoning for all banking PO,Clerk,IBPS PO,Railway,SSC,IAS,OAS Exams

Q11.
How many such pairs of letters are their in the word KINDNESS, each of which have as many letters between them in the word as in the alphabet ?
1) None 2) One
3) Two 4) Three
5)None of these
Answer : One
Explanation :
K  I  N  D  N  E  S  S

So, the pairs of letters are : N - S, E - I.
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Q12.
If it is possible to make a meaningful word with the first, the fifth, the ninth and the eleventh letters of the word PENULTIMATE using each letter only once, which of the following will be the third letter of that word? If no such word can be made give *N’ as the answer and If more than one such word can be formed give ‘D* as the answer.
1) E 2) P
3) L 4) D
5)N
Answer : D
Explanation :
Specified letters : P, L, A, E
Meaningful words : LEAP, PALE
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Q13.
Pointing to a person, a man said to a women, ‘His mother is the only daughter of your father’’, How was the women related to the person ?
1) Aunt 2) Mother
3) Wife 4) Daughter
5)None of these.
Answer : Mother
Explanation :
Only Daughter of women’s father „ women itself.
The persons mother is the woman itself. 
Hence, the women is the person’s mother.
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Q14.
Four of the following five are alike in a certain way. Which one is NOT like the other four?
1) Jumping 2) Running
3) Jogging 4) Exercising
5)Walking
Answer : Exercising
Explanation : All others are different modes of exercising.
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Q15.
In a row of girls Rozali is 22nd from the left and 13th from the right. How many girls are there in the row ?
1) 34 2) 35
3) 36 4) 38
5)None of these
Answer : 34
Explanation :
Total girls = ( Rank from left + Rank from right) -1
= (22 + 13) - 1 = 34

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Q16.
‘ACEG’ is related to ‘ZXVT’ in the same way as ‘HJLN’ is related to - 
1) TRPN 2) SQOM
3) OQSU 4) RPNL
5)None of these
Answer : SQOM
Explanation :
A  C   E  G H  J    L   N
Z   X   V   T S  Q   O  M
The arrangement is reverse order of English alphabets.
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Q17.
Direction  :  A cube is painted red and all its faces and is then divided into 343 equal cubes.

How many cubes will have at least one face painted ?
1) 127 2) 178
3) 218 4) 279
5)None of these
Answer : 218
Explanation : The number of cubes whose at least one face is painted = One face painted + two face painted + three face painted = One face visible + two face visible + three face visible = Total - (No face visible) = 343 - 125 = 218
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Q18.
Direction  :  A cube is painted red and all its faces and is then divided into 343 equal cubes.
How many cubes have no face painted ?
1) 27 2) 64
3) 125 4) 216
5)None of these
Answer : 125
Explanation : The number of cubes where no face is painted = The number of cubes who one face is visible
 =  (a - 2)3 = (7 - 2)3 = 125.
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Q19.
Direction  :  A cube is painted red and all its faces and is then divided into 343 equal cubes.

How many cubes will have one face painted ?
1) 112 2) 148
3) 150 4) 162
5)None of these
Answer : 150
Explanation : The number of cubes whose one face is painted = The number of cubes who one face is visible = 6 (a - 2)2 = 6 (7 - 2)2 = 150
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Q20.
Direction  :  A cube is painted red and all its faces and is then divided into 343 equal cubes.

How may cubes will have two faces painted ?
1) 45 2) 50
3) 56 4) 60
5)None of these
Answer : 60
Explanation :
Since, the cube is divided into 343 equal cubes i.e. (7)3 equal cubes, assume the edge length of the cube to be 7, (a = 7). This is done using the idea of unit cubes. (A cube of edge length a unit can be divided into a3 unit cubes)

The number of cubes whose two faces are painted = The number of cubes whose two faces are visible = 12 (a - 2) = 12 (7 - 2) = 60
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