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The current erection cost of a structure is Rs. 13,200. If the labour wages per day increase by 1/5 of the current wages and the working hours decrease by 1/24 of the current period, then the new cost of erection in Rs. is

1. 16,500
2. 15,180
3. 11,000
4. 10,120

Correct answer: 15,180

Solution

The new cost of erection is calculated by adjusting the current cost based on the increased labor wages and decreased working hours. The increase in wages raises the overall cost, while the reduction in hours slightly offsets this increase, resulting in a final cost of Rs. 15,180.

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