Quantitative Aptitude - Arithmetic Ability Questions

Average of 14 numbers is 32. If the average of last 5 numbers is 26, then what is the average of the remaining numbers?

Among three numbers, the first is twice the second and thrice the third. If the average of three numbers is 198, then what is the difference between the first and the third number?

A mobile plan costs Rs. 32 for 6 minutes. What is the approximate cost, in rupees, for 4 minutes?

The ratio of present ages of Rambha and Sarvesh is 8:5. After 7 years the ratio of their ages will be 5:4. What is Rambha's present age?

If 5x + 6(3-2x) = 4, then what is the value of x?

If the parallel sides of a trapezium are 8 cm and 4 cm, M and N are the mid points of the diagonals of the trapezium, then length of MN is

Choose the odd word/letters/number/number pair from the given alternatives.

If cos3A = X, then value of X?