Quantitative Aptitude - Arithmetic Ability Questions

20 boys do one fourth of work in 25 days. How many more boys will be required to complete the remaining work in 50 days?

Car B is running twice as fast as car A. If car A covers a distance of 90 km in 1 1/2 hrs, what is the speed of car B?

Solve : 8,23,199.98 × 99.92 = ? × 80,000

Calculate the value of √3√3 + 3, if √3 = 1.732

Find k, if the line 4x - y = 1 is perpendicular to the line 5x - ky = 2?

At what point does the line 3x + 2y = 12 cuts the Y-axis?

If sin3A = x, then value of x is

Circum center of ΔABC is O. If ∡BAC = 75 and ∡BCA = 80 degrees,

then what is the value of ∡OAC(in deg)?