IBPS PO Prelims 2017 Solved Paper

Let 4 consecutive even number is
x, x + 2, x + 4, x + 6

1

x

+

1

x+2

=

11

60

x+2+x

x(x+2)

=

11

60

2(x+1)

x2+2x

=

11

60

120 x + 120 = 11x2+22x
11x2 - 98 x - 120 = 0
x =

−24

22

, 10 = −

12

11

, 10
∴ Third number is 14 and reciprocal 3rd highest no. is

1

14