最新の問題
The problem asks in how many ways can a school Principal and his wife, along with three other teache...
PermutationsCombinatoricsArrangementsFactorials
2025/3/19
A school principal, his wife, and three other teachers are to be seated in a row. The principal and ...
PermutationsCombinatoricsArrangements
2025/3/19
A school principal, his wife, and three other teachers are to be seated in a row. The principal and ...
PermutationsCombinatoricsCounting
2025/3/19
A man wants to distribute money. He gives $\frac{2}{5}$ to his wife and divides the rest equally amo...
FractionsWord ProblemLinear EquationsRatio and Proportion
2025/3/19
次の不定積分を求めよ。 $\int \frac{dx}{x^2 + 2x + 3}$
積分不定積分置換積分三角関数
2025/3/19
次の重積分の値を求めます。積分領域は$D = \{(x, y) | x^2 \leq y \leq 2x+3\}$です。 $$ \iint_D \frac{dxdy}{\sqrt{(60 - 4x +...
重積分積分変数変換積分領域
2025/3/19
The problem describes the progress of digging a drain over several days. We are given that $\frac{7}...
FractionsWord ProblemProportionsWork RateLinear Equations
2025/3/19
Ananda has a library. $\frac{1}{6}$ of the books are children's story books, and $\frac{1}{4}$ are l...
FractionsWord ProblemPercentageRatio
2025/3/19
10%の食塩水 $x$ gに2%の食塩水450gを注ぎ、よくかき混ぜると、5.2%の食塩水になる。このとき、$x$の値を求めよ。
方程式濃度食塩水文章問題
2025/3/19
12.6%の食塩水200gと3.6%の食塩水400gを混ぜたとき、何%の食塩水になるかを求める問題です。
濃度食塩水割合計算
2025/3/19