Quantitative Aptitude - Arithmetic Ability Questions

If 3√2 + √18 + √50 = 15.55, then what is the value of √32 + √72?

Three clocks are designed to alarm in every hour, two hours and three hours respectively. If they all alrmed together three hours before, then after how many hours will they next alarm together?

For which value of ‘g’ the linear graph of 6x + 12y +9 = 0 and 2x + gy + 3 =0 has infinite number of solutions?

If 2+aa + 2+bb + 2+cc = 4, then the value of ab+bc+caabc is

What is the value of sin ­7π/4c?

Three solid spheres have their radii r1, r2 and r3. The spheres are melted to form a solid sphere of bigger radius. Then the radius of the new sphere is

A man starts walking at 6.30 a.m. and wants to cover a distance of 30km. His initial speed is 6 kmph and after covering three-fifth distance, he reduces his speed by 2 kmph. At what time will he complete his walk?

Factors of 36 -