A group of workers engaged in plastering a wall completed half of the work on one day and quarter of the remaining work on the next day. If still 60 square meters of the wall remained to be plastered, find the area of the wall.
Explanation:
On 1st day 12 work was completed and on 2nd day 14 × 12 work i.e. 18th work
So, work remaining =1 - 12+18 = 38th
⇒ 38th work is 60m2
⇒ comlete work = 60 × 83 = 160 m2
Hence, option (a).
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