问题
填空题
甲、乙、丙三个数的平均数是150,甲数是48,乙数和丙数相同,那么乙数是______.
答案
(150×3-48)÷2,
=(450-48)÷2,
=402÷2,
=201;
答:乙数是201;
故答案为:201.
甲、乙、丙三个数的平均数是150,甲数是48,乙数和丙数相同,那么乙数是______.
(150×3-48)÷2,
=(450-48)÷2,
=402÷2,
=201;
答:乙数是201;
故答案为:201.