问题
填空题
______比45吨多20%,______减去它的20%是40.
答案
(1)45×(1+20%),
=45×120%,
=54(吨);
(2)40÷(1-20%),
=40÷80%,
=50;
故答案为:54吨,50.
______比45吨多20%,______减去它的20%是40.
(1)45×(1+20%),
=45×120%,
=54(吨);
(2)40÷(1-20%),
=40÷80%,
=50;
故答案为:54吨,50.