La suma de las tres cifras de un número es 10. La cifra de las centenas es igual a la suma de la de las decenas más la de las unidades. Si se permutan entre sí la cifra de las centenas y la de las unidades el número disminuye en 297 unidades, ¿ cuál es ese número?

Question 1 of 10 2 points different groups of 50 graduates of an engineering school were asked the starting annual salary for their first engineering job after graduation, and the sampling variability was low. if the average salary of one of the groups was $65,000, which of these is least likely to be the average salary of another of the groups? o a. $64,000 o b. $65,000 o c. $67,000 o d. $54,000