self Maths Puzzle

10,6,28,20,54,__,__

Read Solution (Total 3)

self Other Question

which of the following is the rate percent per annum which would give difference in amount of interest equal to Rs 20 for Rs 1200 in 3 years and for Rs 800 in 4 years . A can do a piece of work in 24days. When he had worked for 4 days B joined him.
If the complete work is finished in 16 days form the beginning, in how many days can B alone finish the work?

(a) 24 days
(b) 18 days
(c) 36 days
(d) None of the above