Hay 158 paredes disponibles para construir estos recintos, pero no hay suficientes para completarlos. ¿Cuál es el número más pequeño de paredes adicionales necesitadas para completar el patrón de escalera de arriba y abajo?
The figures below represent enclosures constructed of up-and-down stair patterned sets of squares.
If n denotes the number of squares in height, b denotes the number of squares on the bottom, and
T denotes the number of walls, then by actual count, for n = 1, 2, 3, and 4, b = 1, 3, 5, and 7, and T = 4, 13, 26, and 43.
There are 158 walls available for constructing such an enclosure, but they are not enough to complete it. What is the least number of additional walls needed to complete the up-and-down stair patter¬n?
There are 158 walls available for constructing such an enclosure, but they are not enough to complete it. What is the least number of additional walls needed to complete the up-and-down stair patter¬n?
| 1) 27 | 3) 28 |
| 2) 29 | 4) 30 |
| 1) 27 | 3) 28 |
| 2) 29 | 4) 30 |
Incorrect. Try again.
Excellente!
Solución:
Por lo tanto, 30 paredes más son necesitadas.
Solución:
188 - 158 = 30.
Por lo tanto, 30 paredes más son necesitadas.
Excellent!
Solution:
Therefore, 30 more walls are needed.
Solution:
188 - 158 = 30.
Therefore, 30 more walls are needed.