Quantitative Aptitude - Arithmetic Ability Questions

Select the odd letters from the given alternatives.

If (secA - tanA)2 = x, then the value of x is

A, B and C are employed to complete a work in Rs. 784. If A and B together complete 23/28 of the work. Calculate the wages (in Rs.) paid to C?

The average revenues of 7 consecutive years of a company is Rs 79 lakhs. If the average of first 4 years is Rs 74 lakhs and that of last 4 years is Rs 86 lakhs, what is the revenue for the 4th year?

Which of the following is NOT prime number?

How much does one need to add to 2/3 to obtain 3/2?

The numerator of a fraction is multiple of two numbers. One of the numbers is greater than the other by 2. The greater number is smaller than the denominator by 4. If the denominator 7+C (C > -7) is a constant, then the minimum value of the fraction is

A boy crosses a 300 metres wide road in 30 seconds. What is his speed (in km/hr)?