Select the correct answerIn a row of boys, A is fifteenth from the left and B is fourth from the right. There are three boys between A and B.How many boys are there in the row?Options149182213
Question
Select the correct answerIn a row of boys, A is fifteenth from the left and B is fourth from the right. There are three boys between A and B.How many boys are there in the row?Options149182213
Solution
Vamos a resolver el problema paso a paso.
- A está en la posición 15 desde la izquierda.
- B está en la posición 4 desde la derecha.
- Hay 3 chicos entre A y B.
Primero, determinamos la posición de B desde la izquierda. Si hay 3 chicos entre A y B, entonces B está en la posición 15 + 3 + 1 = 19 desde la izquierda.
Ahora, sabemos que B está en la posición 19 desde la izquierda y en la posición 4 desde la derecha. Para encontrar el número total de chicos en la fila, sumamos la posición de B desde la izquierda y desde la derecha y restamos 1 (porque estamos contando a B dos veces):
Número total de chicos = 19 (posición de B desde la izquierda) + 4 (posición de B desde la derecha) - 1 = 22.
Por lo tanto, la respuesta correcta es:
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