1.Mark, a computer programmer, worked for 15 hours and earned 3,960 pesos. What is his rate per hour?

To find Mark's rate per hour, we can divide his total earnings by the number of hours he worked.

rate per hour = total earnings / number of hours worked

rate per hour = 3,960 pesos / 15 hours

rate per hour = 264 pesos/hour

So Mark's rate per hour is 264 pesos/hour.

2.Gladys spent 9 days' collection plastics and he managed to collect 153 kg. How many kilograms of plastics did he collect each day?

To find out how many kilograms of plastics Gladys collected each day, we can divide the total amount of plastics collected by the number of days spent collecting.

kilograms per day = total kilograms / number of days

kilograms per day = 153 kg / 9 days

kilograms per day = 17 kg/day

So Gladys collected 17 kg of plastics per day.

3.There are 24 boys and 16 girls in grade VI- St. Therese. What is the ratio of girls to boys using fraction?

The ratio of girls to boys can be found by dividing the number of girls by the number of boys.

ratio = number of girls / number of boys

ratio = 16 girls / 24 boys

ratio = 2/3

So the ratio of girls to boys in grade VI of St. Therese is 2/3 using fraction.