self Maths Puzzle

-1,11,39,89,167,__,__

Read Solution (Total 2)

self Other Question

USE ONLY 2,3,5,7
AND ALL QUES MULTIPLE CONTAIN ONLY THIS NOS.
QUES IS AS FOLLOWS. .
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A work is scheduled to be completed by 12 persons in 36 days. After how many days,8 persons can leave the work, so that works can be completed in 54 days ?