问题
填空题
为民食堂上月实际用煤3.4吨,比计划节约20%,节约了______吨.
答案
3.4÷(1-20%)×20%
=3.4÷0.8×0.2
=4.25×0.2
=0.85(吨);
答:节约了0.85吨.
故答案为:0.85.
为民食堂上月实际用煤3.4吨,比计划节约20%,节约了______吨.
3.4÷(1-20%)×20%
=3.4÷0.8×0.2
=4.25×0.2
=0.85(吨);
答:节约了0.85吨.
故答案为:0.85.