James hired some workers to build his house in 20 days. But on the day of starting of the construction, 12 men did not come. Rest of the people then built the entire house in 32 days. How many workers had he initially hired?

32

Let the originally hired worker be W

According to the question, the following equation will be formed:

W x 20 = (W - 12) x 32

20W = 32W - 384

12W = 384

W = 32

Thus, workers initially hired were 32 in number.