问题
填空题
5减少______%后是3,比______多20%的数是54.
答案
(1)(5-3)÷5,
=2÷5,
=40%;
(2)54÷(1+20%),
=54÷1.2,
=45.
故答案为:40,45.
5减少______%后是3,比______多20%的数是54.
(1)(5-3)÷5,
=2÷5,
=40%;
(2)54÷(1+20%),
=54÷1.2,
=45.
故答案为:40,45.