Quantitative Aptitude - Arithmetic Ability Questions

The mean of marks secured by 50 students in division A of class X is 61, 25 students of division B is 57 and that of 50 students of division C is 55. What will be the mean of marks of the students of three divisions of Class X?

What is the average of all the one digit and two digit natural numbers?

Akka can bake 100 cakes in 20 hours, Akka and Tai together can bake 75 cakes in 10 hours. How many cakes Tai can bake in 20 hours?

A and B are 15 kms apart and when travelling towards each other meet after half an hour whereas they meet two and a half hours later if they travel in the same direction. The faster of the two travels at the speed of

What will be the average of the first 5 positive even numbers divisible by 9?

If  P2+1P2 = 47, then the value of P + 1P is

If (x – y) = 7, then what is the value of (x – 15)3 – (y – 8)3?

What is the equation of the line passing through the point (-1,3) and having x-intercept of 4 units?