Quantitative Aptitude - Arithmetic Ability Questions

The sum of three numbers is 252. If the first number is thrice the second and third number is two-third of the first, then the second number is

A train crosses a 550 m long platform in 36 seconds. How long was the train if it was travelling at the speed of 70 kmph?

The distance between two cities X and Y is 270 km. First train starts from X at 7:00 a.m. and travels towards Y at 40 km/hr. Second train starts from Y at 8:30 a.m. and travels towards X at 30 km/hr. At what time (in a.m.) will both the trains meet?

If the average age of four children is 12 years and the average age of these children and their fathers is 20 years, what is the age of the father?

If √(1 + cot2A) = x, then the value of x is

If tan ­-5π/3 = x, then the value of x is

The third proportional of two numbers 24 and 36 is

Select the odd word from the given alternatives.