
ptu1
Authored by Renato S.
Mathematics
12th Grade
Used 4+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
1. ¿Cuál(es) de las siguientes operaciones da(n) como resultado el número 2 ?
I) (6 /7)* (14/ 6)
II) (22/ 5) :( 5/11)
III) (10/4) - (2/ 4)
Solo I
Solo II
Solo III
Solo I y III
I, II y III
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Un paquete de 24 rollos de papel higiénico de 50 metros cada uno, cuesta $ 7.440 . ¿Cuál de las siguientes expresiones representa el valor de 1 metro de dicho papel, en pesos?
7440 /24
7440/ 50
7440 / (24*50)
(7440/24)*(50)
(7440/50)*(24)
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Erika pide un préstamo de $ 180.000 en una financiera para pagarlo en 12 cuotas mensuales iguales. La financiera utilizó la siguiente expresión para calcular el interés:
Interés anual = 180.000 * (20/100)
¿Cuánto debe pagar Erika solo por concepto de interés en cada cuota, donde el interés a pagar es el mismo en cada cuota?
$ 3.000
$ 15.000
$ 18.000
$ 183.000
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Si P= raiz(20) , Q = 5*raiz(4) , R = 3* raiz(8) y S = 8*raiz(2) , ¿cuál de las siguientes relaciones es verdadera?
P <R =S < Q
R < P < S< Q
P < R < Q < S
S < Q < R < P
Q = P < S < R
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Qué porcentaje es (a + b) de a * b?
(a+b)/(a*b) %
100*(a+b)/(a*b) %
100*(a*b)/(a+b) %
(a*b)*(a+b) /100 %
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
200 estudiantes responden una prueba y el 10% de ellos responde de manera errónea la pregunta 15. Considerando que todos los estudiantes contestaron la pregunta 15, ¿cuántos estudiantes contestan correctamente esta pregunta?
10
20
160
180
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
log1/2 raiz (2)
-1/2
2
1/2
raíz cuarta de (2)
-raiz (1/2)
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