Quantitative Aptitude - Arithmetic Ability Questions

a% of b + b% of a = ______

If p/q = r/s = t/u = √5, then what is the value of [(3p2 + 4r2 + 5t2)/(3q2 + 4s2 + 5u2)]?

If x+1/x = 2, then the value of x7+2/x6 is equal to?

Two successive discounts of 10% and 25% are given by Raman on a shirt. If the marked price of the shirt is Rs 600, then what is the value (in Rs) of discount?

What is the unit digit of 15+25+35+...+205 ?

Number of composite numbers lying between 67 and 101 is

A train is moving at the speed of 72km/hr. How many seconds will it take to cover a distance of 1400 m ?

A, B and C invest in a business in the ratio 3 : 6 : 5. A and C are working partners. Only B is a sleeping partner hence his share will be 3/4th of what it would have been if he were a working partner. If they make Rs 50,000 profit, half of which is reinvested in the business and the other half is distributed between the partners, then how much does C get (in Rs)?