1.The area of a rectangle is decreased by 9 sq. metre if its length decreases by 5 metre and breadth increases by 3 metre. If its length and breadth are increased by 3 m and 2 m each respectively, its area increases by 67 sq. metre. The length of rectangle is (3)
(1) 9m
(2) 15.6m
(3) 17m
(4) 18.5m
2.If a feast of 100 persons, 50 persons like fish, 60 persons like chicken and 10 people like neither fish nor chicken. Find the number of persons who like fish and chicken both. (1)
(1) 20
(2) 30
(3) 40
(4) 10
3.Average marks obtained by 120 students is 35. If the average marks obtained by successful students is 39 and that by unsuccessful students is 15, then the number of successful students in that examination is (1)
(1) 100
(2) 110
(3) 120
(4) 80
4.There are two examination halls – P and Q. If 10 students are sent from P to Q, the number of students in both the halls is same. If 20 students are sent from Q to P, the number of students in P become twice the number of students in Q. the number of students in P and Q respectively is : (4)
(1) 60, 40
(2) 70, 50
(3) 80, 60
(4) 100, 80
5.A two-digit number is k times the sum of digits. The number formed by reversing the order of digits is how many times the sum of the digits? (3)
(1) 9 + K
(2) 10 + K
(3) 11 +K
(4) K
