Quantitative Aptitude - Arithmetic Ability Questions

Of the three numbers, the average of the first number and the second number is 37 more than the average of second number and third number. What is the difference between the first and the third number?

Vikash purchased 5 bananas for Rs.4 and sold 4 bananas for Rs.5. Calculate his % profit?

At least one diagonal bisects the other in a _____.

The speed of car B is half the speed of car A. If car A covers a distance of 120 km in 1.5 hours, what is the speed of car B?

If (x - 13)2 + (y - 4)2 = 0, then the value of y + xy - x ?

Six year ago Parvez’s age was same as the present age of Manish. If the present age of Parvez is one-fourth more than that of Manish's present age, then in how many years will Parvez’s age become double of Manish’s present age?

If secA + tanA = x, then find the value of x.

If x = a cosθ+ b sinθ and y = b cosθ- a sinθ, then x2 + y2 is equal to