You are checking the results of a phone app that counts calories. When someone eats, it is recorded as positive calories. When someone exercises, it is recorded as negative calories. What is the number of net calories for a person with the following record?

Description Calories

Bike, 30 min

-270

Breakfast

560

Lunch

770

Walk, 45 min

 -80

Dinner

990

Ping-pong, 30 min

-130

1,840

2,260

2,320

2,380

2,800

1840, (answer of all of them added up)

Option A. 1840

Step-by-step explanation:

The app recorded as positive calories when someone eats and it is recorded as negative calories when someone exercise.

To calculate the number of net calories for a person we add all the calories

that he ate and then subtract all the calories that he worked out.

Breakfast + Lunch + Dinner = 560 + 770 + 990 = 2320

Bike + walk + ping-pong = 270 + 80 + 130 = 480

Now subtract the exercise from eaten calories

2320 - 480 = 1,840

Option A. 1840 is the answer.