Quantitative Aptitude - Arithmetic Ability Questions

54% of 4000 is

Divide 3740 in three parts in such a way that half of the first part, one-third of the second part and one-sixth of the third part are equal.

What is the value of (cot60 + 1/√3) ?

Simple interest on a sum for 18 months at 14% per annum is Rs 1365.What is the value (in Rs) of sum?

The mean of 10 observations is 17. One more observation is included and the new mean becomes 16. The 11th observation is

The mean of marks secured by 30 students in division-A of class X is 67, 55 students of division-B is 63 and that of 40 students of division-C is 61. What is the mean of marks of the students of three divisions of Class X?

The sum of the ages of Rohit and Ankit is 78. Rohit's age is twice the age of Ankit. What is the age (in years) of Rohit?

Expanded and simplification of (x + 3)(x - 1) will be equal to