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4. A number is increased by 50% and the resulting number is then decreased by 40%. The final number is
what percent of the original number?
A. 90%
B. 95%
C. 100%
D. 105%
E.120%​

Respuesta :

sqdancefan

Answer:

  A.  90%

Step-by-step explanation:

When the number is increased by 50%, it is multiplied by (1 +50%) = 1.50.

When a number is decreased by 40%, it is multiplied by (1 -40%) = 0.60.

When both factors are applied to a number, the resulting value is ...

  1.50×0.60 = 0.90 = 90%

of the original value.

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