61) A man's basic pay for a 40 hour week is Rs.2000. Overtime is paid for at 25% above the basic rate. In a certain week, he worked overtime and his total wage was Rs.2500. He,therefore, worked for a total of:
(A) 48 hours
(B) 47 hours
(C) 45 hours
(D) 50 hours
62) Salaries of A,B and C are in the ratio 1:2:3 Salary of B and C together is Rs.60000. By what percent is salary of C more than that of A?
(A) 300
(B) 600
(C) 100
(D) 200
63) The price of a table Rs.400 more than that of a chair.If 6 tables and 6 chairs together cost Rs.4800, by what percent is the price of the chair less than that of the table?
(A) 100
(B) 200
(C) 400
(D) None of these
64) The length and breadth of a square are increased by 40% and 30% respectively. The area of the resulting rectangle exceeds the area of the square by:
(A) 82%
(B) 42%
(C) 62%
(D) None of these
65) the length of a rectangle is increased by 20% and the width is decreased by 20%. The area decreases by:
(A) 0.8%
(B) 1.2%
(C) 4%
(D) 8%
66) The length of a rectangle is increased by 60%. By what percent would the width have to be decreased to maintain the same area?
(A) 75%
(B) 37%
(C) 60%
(D) None of these
67) In a market survey, 20% opted for product A whereas 60% opted for product B. The remaining individuals were not certain. If the difference between those who opted for product B and those who were uncertain was 720, how many individuals were covered in the survey?
(A) 3600
(B) 1800
(C) 1440
(D) Data inadequate
68) What comes next in this sequence? 5,10,20,40,____
(A) 60
(B) 70
(C) 80
(D) 90
69) .02 = ?%
(A) 20
(B) 0.2
(C) 0.02
(D) 2
70) 5 out of 2250 parts of earth is sulphur. What is the percentage of sulphur in earth?
(A) 11/50
(B) 2/9
(C) 1/45
(D) 2/45