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Difficult Puzzle for IBPS PO Pre - Part 10

Published on Monday, October 03, 2016
puzzles
Directions (Q. 1-5) Read the following information carefully to answer the questions given below: A troupe consists of 260 artists. The ratio of dancer to  singer involved is 6 : 7. There are
three groups named A, B and C in a troupe. In group A, there are 40% singers of the total number of singers and 50% dancer of the total number of dancers. In group B, singers are 30% of the total number of singers and dancers are 30% of the total number of dancers. Group C has 30% singers of the total number of singers and 20% dancers of total number of dancers. 8 dancers and 11 singers are involved in group A and B both. 7 dancers and 8 singers are involved in group B and C both. 5 dancers and 7 singers are involved in group A and C both. 3 dancers and 4 singers are involved in all the groups.

1. What percentage of artists are involved in any two groups at a time? 
1) 18.89%
2) 15.89% 
3) 16.19%
4) 17.69% 
5) None of these

2. What is the ratio of the total dancers to singers involved in either group A or group B but not in both?
1) 48: 49 
2) 47 : 49 
3) 53 : 49
4) 53:48 
5) None of these

3. By what per cent is the number of dancers involved in group A only more than the number of singers involved in group B only ? 
1) 45.86% 
2) 42.86% 
3) 49.86%
4) 69.86% 
5) None of these

4.The number of singers involved either in group 'A' or in group 'B' but not in both is by what per cent is more than the number of dancers involved either in group 'A' or in group 'C' but not in both ? 
1) 18.67% 
2) 16.67% 
3) 20.67%
4) 21.67% 
5) None of these

5. The total number of artist involved in all the groups is what percent of the artists involved in both group B and C? 
1) 45.67%
2) 48.67%
3) 46.67%
4) 42.67% 
5) None of these

Answer: 

Dancer= 6/13 x 260=120    
13
                7         
 Singer= —  x 260=140
              13







Dancer Singer
Group A 60 56
Group B 36 42
Group C 24 42
Group A and B (A ∩ B) 8 11
Group B and C (B ∩ C) 7 8
Group C and A (C ∩ A) 5 7
Group A,B & C (A ∩ B  ∩C) 3 4

1. 4; Required percentage = x 100

= x 100 = 17.69%


2. 1; Required Ratio = (60+36) : (56+42) = 96:98

= 48:49


3. 2; Required Percentage = x 100 = x 100

= 42.86%


4. 2; Required Percentage
= x 100 = x 100

= 16.67%


5. 3; Required Percentage = x 100 = 46.67%


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