Question

某工廠去年十二月產(chǎn)量為a，已知月平均增長(zhǎng)率為p，則今年十二月的月產(chǎn)值比去年同期增加的倍數(shù)是(　　)

A. (1+p) ¹²-1

B. (1+p) ¹²

C. (1+p) ¹¹

D. 12p

Answer 1

解析:工廠去年十二月的月產(chǎn)量為a，月平均增長(zhǎng)率為p，則今年十二月的產(chǎn)量應(yīng)為a(1+p)¹²，今年十二月的月產(chǎn)量比去年同期增加的為a(1+p) ¹²-a，增加的倍數(shù)為，即(1+p) ¹²-1.

答案:A