In a class, 120 students are male and 100 students are female. 25% of the male students and 20% of the female students are engineering students. 20% of the male engineering students and 25% of the female engineering students passed the final exam. What percentage of engineering students passed the exam?

P starts jogging from point X to point Y. 30 minutes later his friend R who jogs 1 km/hour slower than twice P...

A total of Tk. 1200 is deposited in two savings accounts for one year, one portion at 5% simple interest, and...

The combined salary of X , Y and Z is Tk. 90,000. X earns twice of what z earns, and Y earns 1.5 times of what...

A worker was hired for 7 days. Each day, he was paid Tk. 10 more than what he was paid for the previous day of...

M is a girl and has the same number of brothers as sisters. N is a boy and has twice as many sisters as brothe...

Forty tiles of dimensions 1 foot * 2 foot each are required to completely cover a floor. How many tiles of dim...