1.Given that 0 < a < b < c < d, which of the following the largest?
(a) (c+d) / (a+b)
(b) (a+d) / (b+c)
(c) b+c) / (a+d)
(d) (b+d) / (a+c)

2.Jake can dig a well in 16 days.  Paul can dig the same well in 24 days.  Jake, Paul and Hari together dig the well in 8 days.  Hari alone can dig the well in
(a) 96 days
(b) 48 days
(c) 32 days
(d) 24 days

3.The sum of the digits of a three digit number is 17, and the sum of the squares of its digits is 109. If we subtract 495 from the number, we shall get a number consisting of the same digits written in the reverse order.  Find the number.
(a) 773
(b) 683
(c) 944
(d) 863

4.Mark told John “If you give me half your money I will have Rs.75.  John said, “if you give me one third of your money, I will have Rs.75/-  How much money did John have ?

(a) 45
(b) 60
(c) 48