Quantitative Aptitude - Arithmetic Ability Questions

The amount received at 10% per annum compound interest after 3 yrs is Rs 10,648. What was the principal (in Rs)?

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

If 2x-2x=1 (x≠0),then the value of x3-1x3 is

A and B can together do a piece of work in 6 days and A alone can do it in 9 days. The number of days B will take to do it alone is

The average age of eight teachers in a school is 40 years. A teacher among them died at the age of 55 years whereas another teacher whose age was 39 years joins them. The average age of the teachers in the school now is (in years)

The average revenues of 7 consecutive years of a company is Rs 75 lakhs. If the average of first 4 years is Rs 70 lakhs and that of last 4 years is Rs 82 lakhs, what will be the revenue for the 4th year.

In ΔPQR, PQ = PR = 18 cm, AB and AC are parallel to lines PR and PQ respectively. If A is the mid-point of QR, then what is the perimeter (in cm) of quadrilateral ABPC?

If x = at2 and y = 2at then