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Main Subjects MCQs With Answers
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Two pipes can fill a tank in 12 min and 15 min respectively. A third pipe empties it in 6 min. If all three operate, how long to empty a full tank?
A20 min
B30 min
C40 min
D60 min
The average score of 50 students in a class test was 70. Later it was found that a score of 45 was misread as 95. What is the correct mean?
A68
B69
C71
D72
What is the angle between the hour hand and minute hand of a clock at 3:30?
A60°
B75°
C85°
D90°
A and B can do a job in 12 days, B and C in 15 days, C and A in 20 days. How long will A take alone to complete the job?
A20 days
B30 days
C40 days
D60 days
If 1st January 2004 was Thursday, what day of the week was 1st January 2005?
AFriday
BSaturday
CSunday
DMonday
By selling 33 meters of cloth, a shopkeeper gains the selling price of 11 meters. What is the gain percentage?
A25%
B33.33%
C50%
D66.67%
If tan(theta) = 3/4, find the value of sin(theta) + cos(theta).
A1/5
B3/5
C7/5
D9/5
If 2x – 3y = 7 and xy = 3, find the value of 4x^2 + 9y^2.
A73
B79
C85
D91