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 student passed the final exam. What percentage of engineering students passed the exam?

The probability of rolling any number on a weight 6-sided die, with faces number 1 through 6, is directly prop...

What is the ratio of the sum of the even positive integers between 1 and 100 (inclusive) and the sum of the od...

Arif is now 5 times as old as Babu, but 7 years now he will be 3 times as old as babu. How old is Arif now?

If x is an even number, what is the difference between the smallest ever number grater than (5x+6) and the lar...

Babu gave 20% of his marbles to Sadeq, and 20% of the rest of marbles to Tipu. If he now has 320 marbles, how...

What is the radius of the in-circle of the triangle whose sides measure 5, 12 and 13 units?