Quantitative Aptitude - Arithmetic Ability Questions

A can paint a house in 45 days and B can do it in 15 days. Along with C, they did the job in 5 days only. Then, C alone can do the job in how many days?

Two businessmen A and B invest in a business in the ratio 5 : 8. They decided to reinvest 30% of the profit they earned back into the business. The remaining profit they distributed amongst themselves. If A's share of the profit was Rs 87,500 then how much profit (in Rs) did the business make?

If the average age of 20 students in Class-I is 10 years and average age of 25 students in Class II is 12 years, find the average age (in years) of all students.

If 3x= 4y= 12, then z is equal to

A person scores 45% of the total marks in the exam and still fails by 40 marks. The passing percentage of the exam is 55%. What is the maximum marks of the exam?

∆PQR is right angled at Q. If sinP = 12/13, then what is the value of tanR?

What is the measure of an interior angle of a regular decagon?

If cosec ­4π/3 = x, then the value of x is