题目内容
某班有女生16人,占全班总人数的
.全班有______人;男生占全班总人数的______,男生有______人;女生人数足男生人数的______.
2 |
5 |
16÷
=40(人)
答:全班有40人.
(16÷
-16)÷40
=(40-16)÷40
=24÷40
=60%
答:男生占全班总人数的60%.
16÷
-16
=40-16
=24(人)
答:男生有24人.
16÷(16÷
-16)
=16÷(40-16)
=16÷24
=
答:女生人数足男生人数的
.
故答案为:40,60%,24,
.
2 |
5 |
答:全班有40人.
(16÷
2 |
5 |
=(40-16)÷40
=24÷40
=60%
答:男生占全班总人数的60%.
16÷
2 |
5 |
=40-16
=24(人)
答:男生有24人.
16÷(16÷
2 |
5 |
=16÷(40-16)
=16÷24
=
2 |
3 |
答:女生人数足男生人数的
2 |
3 |
故答案为:40,60%,24,
2 |
3 |
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