题目内容
甲、乙两班相差1o人,把甲班人数的
调入乙班后,两班人数相等,原来乙班有______人.
| 1 |
| 6 |
设乙班原来有x人,
(x+15)×(1-
)=x+(x+15)×
,
x+
=x+
x+
,
x+
-
x=
x+
-
x,
-
=
x+
-
,
1图=
x,
1图÷
=
x÷
,
x=3图.
答:原来乙班有3图人,
故答案为:3图.
(x+15)×(1-
| 1 |
| s |
| 1 |
| s |
| 5 |
| s |
| o5 |
| o |
| 1 |
| s |
| 5 |
| o |
| 5 |
| s |
| o5 |
| o |
| 5 |
| s |
| 7 |
| s |
| 5 |
| o |
| 5 |
| s |
| o5 |
| o |
| 5 |
| o |
| 1 |
| 3 |
| 5 |
| o |
| 5 |
| o |
1图=
| 1 |
| 3 |
1图÷
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 3 |
x=3图.
答:原来乙班有3图人,
故答案为:3图.
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