IBPS PO Numerical Ability for practice

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IBPS Numerical Ability Paper set 4
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1

What should come in place of the question mark '?' in the following number series?  31. 48, 63, 52, 67, ?, 71

2

17, 29, 53, 101, 197, ? 
3

16, 21, 31, 45, 62, ? 
4

6, 11, 27, 86, ?, 1750 
5

5, 14, 78, 103, 319, ? 
6

 Study the following graph carefully and answer the questions given below: The given bar graph depicting the number of pillows sold by two stores A and B in the given 5 months.  
 What is the respective ratio between total number of pillows sold by store A in June and July together and that by store B in May and June together?
7

If the total number of pillows sold by stores A and B together in August is 230 more than that sold in May, then what is the total number of pillows sold by stores A and B together in August? 
8

  The respective ratio between number of pillows sold by store A in February and March is 11 : 7 and the respective ratio between number of pillows sold by store B in February and April is 9 : 13. What is the difference between number of pillows sold by stores A and B in February?
9

  The respective ratio between number of pillows sold by store A in February and March is 11 : 7 and the respective ratio between number of pillows sold by store B in February and April is 9 : 13. What is the difference between number of pillows sold by stores A and B in February?
10

What is the average number of pillows sold by store B in March, April and June?
11

What is the average number of pillows sold by store B in March, April and June?
12

If the total number of pillows sold by stores A and B together in December is 15% less than that in July, then what is the total number of pillows sold by stores A and B together in December?
13

 A shopkeeper mixed two varieties of rice at Rs. 24/kg and Rs. x/kg in the ratio 2 : 3 respectively and sold the mixture at Rs. 29.88/kg at 20% profit. Find the value of x. 
14

There are 8 blue, 5 yellow and 7 red balls. What is the probability of choosing either 1 yellow or red ball? 
15

 Two pipes A and B can fill a tank in 60 hours and 40 hours respectively and pipe C can empty the tank in 15 hours. If pipes A and B are opened for 12 hours, then pipe C is also opened. After how many hours, the tank will be emptied?