1.

A alone can do a work in 12 days. Time taken by A in completing 1//3 of work is equal to the time taken by B in completing 1//2 of the work. In what time A and B together will complete the work?

Answer»

6 days
4 days
12 days
`24/5 days`

Solution :According to question,
TIME taken by A in completing `1//3` of WORK
` = 12 xx 1/3 = 4 ` days
4 day = time taken by B in completing `1//2 ` of work
B alone will complete the work the work = 8 days
REQUIRED time
`RARR (12xx8)/20 = 24/5` days


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