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.
