Reasoning

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

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Q1.
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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Q2.
A is 16th from the left end in the row of boys and C is 18th from the right end. B is 11th from A towards the right end and 3rd from C from the right end. How many boys are there in the row?
1) 40 2) 42
3) 47 4) Data Inadequate
5)None of these
Answer : 47
Explanation :
So, total number of boys= (16+11+3+18) - 1 = 47
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Q3.
Directions : Study the following information carefully and answer the questions given below it :
A sales representative plans to visit each of the six companies M, N, P, Q, R and S exactly once during the course of one day. She is setting up her schedule for the day according to the following conditions.
1) She must visit M before N and R
2) She must visit N before Q.
3) The third company she visit must be P.

Which of the following could be the order in which the sales representative visits the six companies ? 
1) M, S, P, N, R, Q 2) Q, N, P, R, S, M
3) M, R, N, Q, P, S 4) P, S, M. R, Q, N
5)P, R, M, N, Q, S
Answer : M, S, P, N, R, Q
Explanation :
From data 1 : - M > N, M > R
From data 2 : - N > Q
Combining these two, M > N > Q and M > R.
Now look for the informations given in each question and combining these with the information 
M > N > Q, M > R and  _ _  P _ _.

S is first
S _ P _ _ _ (P is third)
Also M must be followed by N, Q and R.
M must be visited second
Since P is third and there are only three places behind P. Also M must be followed by three N, Q and R. Hence, M cannot come before P. i.e. immediately after P she can visit any company except M.

According to the information, P must be in the third place and the order M N Q must not be violated. This is followed only in the arrangement M S P N R Q.
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Q4.
Directions : Study the following information carefully and answer the questions given below it :
A sales representative plans to visit each of the six companies M, N, P, Q, R and S exactly once during the course of one day. She is setting up her schedule for the day according to the following conditions.
1) She must visit M before N and R
2) She must visit N before Q.
3) The third company she visit must be P.

If the sales representative visits Q immediately before R and immediately after S, she must visit Q
1) First 2) Second
3) Fourth 4) Fifth
5)Sixth
Answer : Fifth
Explanation :
From data 1 : - M > N, M > R
From data 2 : - N > Q
Combining these two, M > N > Q and M > R.
Now look for the informations given in each question and combining these with the information M > N > Q, M > R and  _ _  P _ _.

S is first
S _ P _ _ _ (P is third)
Also M must be followed by N, Q and R.
M must be visited second
Since P is third and there are only three places behind P. Also M must be followed by three N, Q and R. Hence, M cannot come before P. i.e. immediately after P she can visit any company except M.

If Q is visited just before R and immediately after S, the order followed will be M N S Q R. SInce P must be in the 3rd place, so we have M N P S Q, i.e. Q must be visited fifth.
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Q5.
Directions : Study the following information carefully and answer the questions given below it :
A sales representative plans to visit each of the six companies M, N, P, Q, R and S exactly once during the course of one day. She is setting up her schedule for the day according to the following conditions.
1) She must visit M before N and R
2) She must visit N before Q.
3) The third company she visit must be P.

The sales representative could visit any of the following companies immediately after P except-
1) S 2) R
3) Q 4) N
5)M
Answer : M
Explanation :
From data 1 : - M > N, M > R
From data 2 : - N > Q
Combining these two, M > N > Q and M > R.
Now look for the informations given in each question and combining these with the information M > N > Q, M > R and  _ _  P _ _.

S is first
S _ P _ _ _ (P is third)
Also M must be followed by N, Q and R.
M must be visited second
Since P is third and there are only three places behind P. Also M must be followed by three N, Q and R. Hence, M cannot come before P. i.e. immediately after P she can visit any company except M.
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Q6.
Directions : Study the following information carefully and answer the questions given below it :
A sales representative plans to visit each of the six companies M, N, P, Q, R and S exactly once during the course of one day. She is setting up her schedule for the day according to the following conditions.
1) She must visit M before N and R
2) She must visit N before Q.
3) The third company she visit must be P.

The sales representative could visit any of the following companies immediately after P except-
1) S 2) R
3) Q 4) N
5)M
Answer : M
Explanation :
From data 1 : - M > N, M > R
From data 2 : - N > Q
Combining these two, M > N > Q and M > R.
Now look for the informations given in each question and combining these with the information M > N > Q, M > R and  _ _  P _ _.

S is first
S _ P _ _ _ (P is third)
Also M must be followed by N, Q and R.
M must be visited second
Since P is third and there are only three places behind P. Also M must be followed by three N, Q and R. Hence, M cannot come before P. i.e. immediately after P she can visit any company except M.
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Q7.
Directions : Study the following information carefully and answer the questions given below it :
A sales representative plans to visit each of the six companies M, N, P, Q, R and S exactly once during the course of one day. She is setting up her schedule for the day according to the following conditions.
1) She must visit M before N and R
2) She must visit N before Q.
3) The third company she visit must be P.

If the sales representative visits S first, which company must she visit second ?
1) M 2) N
3) P 4) Q
5)R
Answer : M
Explanation :
From data 1 : - M > N, M > R
From data 2 : - N > Q
Combining these two, M > N > Q and M > R.
Now look for the information given in each question and combining these with the information M > N > Q, M > R and  _ _  P _ _.

S is first
S _ P _ _ _ (P is third)
Also M must be followed by N, Q and R.
M must be visited second.
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Q8.
Directions : Study the following information carefully and answer the questions given below it :
A sales representative plans to visit each of the six companies M, N, P, Q, R and S exactly once during the course of one day. She is setting up her schedule for the day according to the following conditions.
I) She must visit M before N and R
II) She must visit N before Q.
III) The third company she visit must be P.

Which of the following must be true of the sale’s representatives schedule ? 
1) She visits M before Q 2) She visits N before R
3) She visits P before M 4) She visits P before S
5)She visits Q before R
Answer : She visits M before Q
Explanation :
From data 1 : - M > N, M > R
From data 2 : - N > Q
Combining these two, M > N > Q and M > R.
Now look for the informations given in each question and combining these with the information M > N > Q, M > R and  _ _  P _ _.

Clearly she visits M before N and N before Q. So, she visit M before Q.

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Q9.
Directions : These questions are based on the following information. Study it carefully to answer the questions.

There are five friends - Shailendra, Keshav, Madhav, Ashish and Rakesh. Shailendra is shorter than Keshav but taller than Rakesh. Madhav is the tallest. Ashish is a little shorter than Keshav and a little taller than Shailendra.

Who is taller than Ashish but shorter than Madhav ?
1) Rakesh 2) Keshav
3) Shailendra 4) D.I
5)None of these
Answer : Keshav
Explanation :
Let us denote the friends by the first letter of each name, namely S, K, M, A and R. It is given that Shailendra is shorter than Keshav but taller than Rakesh. 
Therefore,  R < S < K. 
Ashish is a little shorter than Keshav and a little taller than Shailendra i.e S < A < K. 
Madhav is the tallest. From this we get R < S < A < K < M.

So, Keshav is taller than Ashish but shorter than Madhav.
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Q10.
Directions : These questions are based on the following information. Study it carefully to answer the questions.

There are five friends - Shailendra, Keshav, Madhav, Ashish and Rakesh. Shailendra is shorter than Keshav but taller than Rakesh. Madhav is the tallest. Ashish is a little shorter than Keshav and a little taller than Shailendra.

Who is the second tallest ?
1) Shailendra 2) Keshav
3) Ashish 4) Rakesh
5)None of these
Answer : Keshav
Explanation :
Let us denote the friends by the first letter of each name, namely S, K, M, A and R. It is given that Shailendra is shorter than Keshav but taller than Rakesh. 
Therefore,  R < S < K. 
Ashish is a little shorter than Keshav and a little taller than Shailendra i.e S < A < K. 
Madhav is the tallest. From this we get R < S < A < K < M.

So,Keshav is the second tallest.
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