Quantitative Aptitude - Arithmetic Ability Questions

If a+1b= b+1c = c+1a (a , b, c are not equal) then the value of abc = 

If tan A = 1/2 and tan B = 1/3, then what is the value of tan (2A + B)?

A student has to secure 40% marks to pass. He gets 67 and fails by 13 marks. What is the maximum marks?

If a+b+c = 0, then (a^3 + b^3 + c^3)^2 = ?

In a match, average of runs scored by 7 players is 53. If the runs scored by 6 players are 121, 40, 26, 56, 37 and 48, then how many runs did the 7th player scored?

Study the information carefully to answer the following questions: An urn contains 5 red, 3 green, 2 blue and 4 yellow marbles. If three marbles are picked at random, what is the probability that one is green and two are yellow?

A man spends 59% of his income and saves the rest. What percentage of his expenditure does he save?

If cosec θ + sinθ = 5/2 then the value of cosecθ - sinθ is