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IBPS PO Prelims Model Paper 6 with solutions
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© examsnet.com
Question : 21
Total: 100
If the sum of 8 consecutive odd numbers is 640, then find the square of the highest value.
7898
7569
7921
8024
9215
Validate
Solution:
Sum of 8 consecutive numbers = 640
Therefore, average
=
640
8
=
80
As 80 is average of 79 and 81, we can say fourth and fifth numbers are 79 and 81, respectively.
Numbers are 71, 73, 75, 79, 81, 83, 85 and 87
Square of highest number
=
(
87
)
2
=
7569
© examsnet.com
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