Of the 50 students in a college , 32 are enrolled in psychology class and 37 are enrolled in logic. If 6 of the students did not enroll in either class, how many of the students are in only one of these two classes?

Danny attended a test containing 40 questions. If he had corrected 18 questions out of the first 22 and two-th...

Bonds Telecom sold 140 SIM cards for Tk. 250 each, 120 SIM cards for Tk. 215 each and 50 SIM cards for TK. 200...

An athlete running at 24 km /hr crosses a square field diagonally in 3 minutes. what is the area of the field?

If w= 4x, 12y=8x , 6y=2z and 9v=6z then what is the value of 'w' in terms of 'V'?

In a school 80% students passed in Bangla and 65% passed in Science . If 50% of the students have passed both...

In a class , the ratio of the number of boys to girls is 5 : 3 . What percent of the students of the class are...