Question

activity calories activity calories sitting in class 100 making beds 175 studying 105 washing dishes 180 eating 125 playing table tennis 230 typing 140 lifting weights 500 lying down 75 standing 125 slow walking 225 fast walking 300 biking 900 jogging 550 example 2,125 calories taken in calories used 2,125 calories taken in biking 900 - 1,375 calories used making beds 175 750 calories left fast walking + 300 1,375 will bikes for 1 hour, studies for 2 hours, and walks fast for 1 hour. if he consumes 3100 calories, how many calories remain to be used? 1590 calories 1690 calories 1790 calories 1890 calories

Explanation:

Step1: Calculate calories used for biking

Biking for 1 hour burns 900 calories.
$900$

Step2: Calculate calories used for studying

Studying for 2 hours, since 1 - hour studying burns 105 calories, 2 - hour studying burns $105\times2 = 210$ calories.
$210$

Step3: Calculate calories used for fast - walking

Fast - walking for 1 hour burns 300 calories.
$300$

Step4: Calculate total calories used

Add up the calories used for each activity: $900 + 210+300=1410$ calories.
$900 + 210+300 = 1410$

Step5: Calculate remaining calories

Subtract the total calories used from the calories consumed. He consumed 3100 calories, so the remaining calories are $3100−1410 = 1690$ calories.
$3100−1410=1690$

Answer:

1690 calories