Quantitative Aptitude - Arithmetic Ability Questions

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?

Of the 3 numbers whose average is 70, the first is 1/9 times the sum of other 2. The first number is

A water tank is 2/5 th full. Inlet A can fill the tank in 12 minutes while an outlet pipe B can empty it in 6minutes. If both the pipes are open, how long will it take to empty or fill the tank completely?

X, Y and Z are partners in a company. In one year X receives 1/4 part of profit, Y receives 1/5 part of profit and Z receives Rs 22000. How much amount (in Rs) will X get as profit?

If θ be positive acute angle and 5cosθ + 12sinθ = 13, then the value of cosθ is

If cot(A/2) = x, then x is equal to

If x = 3+13, then the value of x-12642x-1x-233 is

Δ LMN is right angled at M. If m∠N = 45°, what is the length of MN (in cm), if NL = 9√2 cm?