Correct option is A
Given,

Calculate the annual depreciation of a property, whose original cost is Rs. 30,00,000. Consider its scrape value as Rs. 3,00,000 after 30 years. Use the straight-line method.
Given,

A three-hinged arch has hinged supports at each abutment. The external restraint provided by both the abutments is ____ .
A three-hinged arch has hinged supports at each abutment. The external restraint provided by both the abutments is ____ .