Question

4 of 8
activity\tcalories\tactivity\tcalories
sitting in class\t100\tmaking beds\t175
studying\t105\twashing dishes\t180
eating\t125\tplaying table tennis\t230
typing\t140\tlifting weights\t500
lying down\t75\tstanding\t125
slow walking\t225\tfast walking\t300
biking\t900\tjogging\t550
3,100 (calories consumed) - ____ (3 hours studying) - __ (2 hours fast walking) - __ (2 washing dishes) = ____ (calories left)
1800 calories remaining
1825 calories remaining
1850 calories remaining
1875 calories remaining

Explanation:

Step1: Calculate calories for studying

Since studying burns 105 calories per hour, for 3 hours of studying, the calories burned is $105\times3 = 315$ calories.

Step2: Calculate calories for fast - walking

Fast - walking burns 300 calories per hour. For 2 hours of fast - walking, the calories burned is $300\times2=600$ calories.

Step3: Calculate calories for washing dishes

Washing dishes burns 180 calories per hour. For 2 hours of washing dishes, the calories burned is $180\times2 = 360$ calories.

Step4: Calculate remaining calories

The initial calories consumed is 3100. Subtract the calories burned from studying, fast - walking and washing dishes. So, $3100-315 - 600-360=1825$ calories.

Answer:

1825 Calories Remaining