电气license考试经济计算题

1.A project has material costs of $1,524 and direct labor costs of $1,854. The
contractor adds 11% overhead and then adds 15% profit on top of the amount
that includes overhead. What is the total bid price?

先计算直接成本：1,524十1,854=3,378美元。加入11%间接费用后为
3,378×1.11=3,749.58美元。题目说明利润加在包含间接费用后的金额之
上，因此再计算3,749.58×1.15=4,312.017美元，按美分四舍五入为
4,312.02美元。不能把11%与15%直接相加后只乘一次，因为利润的计
算基数已经包括间接费用。

2.Material cost is 5,0o0 and labor cost is 6,0oo. Overhead is 11 percent of the
total bid price, and profit is 15 percent of the total bid price. What is the bid
price?

直接成本=5,000＋6,000=11,000。
若管理费11%和利润15%都是按”投标总价”计，则直接成本占投标总价
的比例为 1-0.11—0.15=0.74。
投标总价=11,000÷0.74=14,864.8649，四舍五入为14,864.86。