1. In a farm there are cows and hens. If heads are counted they are 180, if legs are counted they
are 420. The number of cows in the farm is

(1).130
(2).50
(3).150
(4).30


2. The number which can be written in the form of n (n + 1) (n + 2), where n is a natural number, is

(1).7
(2).3
(3).5
(4).6


3. A number when divided by 2736 Delhi leaves the remainder 75. If the same number is divided by 24, then the remainder is
(1).12
(2).3
(3).0
(4).23