Reasoning
ISBT Reasoning for all banking PO,Clerk,IBPS PO,Railway,SSC,IAS,OAS Exams
Q21. 

1)  E  2)  P 
3)  L  4)  D 
5)  N 
Answer : D
Explanation :
Explanation :
Specified letters : P, L, A, E
Meaningful words : LEAP, PALE
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Q22. 

1)  Aunt  2)  Mother 
3)  Wife  4)  Daughter 
5)  None of these. 
Answer : Mother
Explanation :
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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Q23. 

1)  Jumping  2)  Running 
3)  Jogging  4)  Exercising 
5)  Walking 
Answer : Exercising
Explanation : All others are different modes of exercising.
Explanation : All others are different modes of exercising.
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Q24. 

1)  34  2)  35 
3)  36  4)  38 
5)  None of these 
Answer : 34
Explanation :
Explanation :
Total girls = ( Rank from left + Rank from right) 1
= (22 + 13)  1 = 34
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Q25. 

1)  TRPN  2)  SQOM 
3)  OQSU  4)  RPNL 
5)  None of these 
Answer : SQOM
Explanation :
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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Q26. 

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
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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Q27. 

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
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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Q28.  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
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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Q29. 

1)  45  2)  50 
3)  56  4)  60 
5)  None of these 
Answer : 60
Explanation :
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 a^{3} 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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Q30. 

1)  0  2)  4 
3)  8  4)  16 
5)  None of these 
Answer : 8
Explanation :
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 a^{3} unit cubes)
The number of cubes whose three face are painted is equal to the number of cubes whose three faces are visible. (Since only those faces which are visible can be painted).
Hence, the number is 8.
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