甲乙丙三人练习投篮,一共投了180次,有45次没投进,甲乙共投进82次,乙丙共投进89,则丙投进( )次. A.36 B.98 C.53 D.46
问题描述:
甲乙丙三人练习投篮,一共投了180次,有45次没投进,甲乙共投进82次,乙丙共投进89,则丙投进( )次.
A. 36
B. 98
C. 53
D. 46
答
(82+89)-(180-45),
=171-135,
=36(次),
89-36=53(次);
答:丙投进了53次.
故选:C.