Quantitative Aptitude - Arithmetic Ability Questions

Choose the odd word/letters/number/number pair from the given alternatives.

Find the LCM of 34, 51 and 68.

If 6A = 7B = 5C; find A : B : C

A man travels 420 kilometres in, partly by rail and partly by steamer. He spends 8 hours more time on steamer. If the velocity of the steamer is 35 km/hr and the velocity of rail is 65 km/hr, how much distance does he cover by steamer?

A fraction is greater than twice its reciprocal by 7/15. What is the fraction?

A, B and C can do a job working alone in 12, 16 and 24 days respectively. In how many days they can do the job if they worked together?

A, B and C together can complete a work in 25 days. If the ratio of efficiency of A, B and C is 15 : 10 : 6 respectively, then in how many days C alone can complete the same work?

50% of a = b, then b% of 40 is the same as _________ of a.