Question

the speed of a car is 80 km per hour. ( it is is increased by 10% )( decreased by 10%) find the speed of the car in two cases ​please answer FAST

Answer 1

Step-by-step explanation:

10 % of 80 is 8

1) increased by 10% is 80+8

I.e 88km/hr

2) decreased by 10% is 80-8

I.e 72 km/hr

Answer 2

Answer:

increased speed = 10%/100×80

=160km/hour

decreased speed = 10%/100×80

=80km/hour

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