Quantitative Aptitude - Arithmetic Ability Questions

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)?

If a boat goes upstream at a speed of 21 km/h and comes back the same distance at 28 km/h. What is the average speed (in km/hr) for the total journey?

If x – (1/x) = 3, then what is the value of (2x4 + 3x3 + 13x2 – 3x + 2) / (3x4 + 3)?

If x2+1x2 = 98, then x3+1x3 = ?

If one root of the equation Ax2 +Bx + C = 0 is two and a half times the others, then which of the following is TRUE?

The number whose square is equal to the difference of the squares of 37 and 23 is:-

The third proportional of two numbers 4 and 20 is

There are red (A), yellow(B) and green (C) tokens in a bag. A : B :: 3 : 8, B : C :: 6 : 13. A : B : C is given by