Quantitative Aptitude - Arithmetic Ability Questions

The LCM of 16, 24, 36, 52 and 54 is?

A student multiplied a number by 6/13 instead of 13/6. What is the percentage error in the calculation?

A & B together finish a job in 24 days, while A, B & C together can finish the same job in 8 days. C alone will finish the job in

A man bought 500 metres of electronic wire at 50 paise per metre. He sold 50% of it at a profit of 5%. At what percent should he sell the remainder so as to gain 10% on the whole transaction?

A certain sum of money was divided between A, B and C in the ratio 5:6:9. If A received Rs. 450 the sum divided was

(secA ­- tanA)/(cosecA + cotA) is equal to

If xy = 56 and x2+ y2= 113, then what will be the value of (x + y)?

If 3A = 6B = 9C; What is A : B : C