Question

商店運(yùn)來(lái)蘋(píng)果X千克，運(yùn)來(lái)的梨是蘋(píng)果的1.8倍，運(yùn)來(lái)的梨和蘋(píng)果共（　�。┣Э耍�

A．x+1.8

B．1.8x

C．2.8x

Answer 1

分析：由“運(yùn)來(lái)的梨是蘋(píng)果的1.8倍，”得出運(yùn)來(lái)的梨的質(zhì)量=蘋(píng)果的質(zhì)量×1.8，而蘋(píng)果的質(zhì)量是x千克，所以梨的質(zhì)量是1.8x，由此求出運(yùn)來(lái)的梨和蘋(píng)果共有的質(zhì)量．

解答：解：x+1.8x=2.8x（千克），
答：運(yùn)來(lái)的梨和蘋(píng)果共2.8x千克；
故選：C．

點(diǎn)評(píng)：關(guān)鍵是根據(jù)題意得出數(shù)量關(guān)系：運(yùn)來(lái)的梨的質(zhì)量=蘋(píng)果的質(zhì)量×1.8，求出梨的質(zhì)量，進(jìn)而求出運(yùn)來(lái)的梨和蘋(píng)果共有的質(zhì)量．