Rizaldo competes in a triathlon in which he has to first swim, then bike, and then run for the same distance. He swims at a rate of 2 kilometres per hour, bikes at a rate of 16 kilometres per hour, and runs at a rate of 10 kilometres per hour. What is his average speed over the entire race?
Bayani can complete some work in 54 days, while Diwata can complete the same work in 27 days. They started the work together, and when the work was half complete, Diwata fell ill and Bayani had to finish the remaining work. How long did it take to complete the work?
The graph below shows the temperature (in degrees Celsius) over 10 weeks in General Santos and Caloocan. Find the difference in the temperature of two cities in the week when the difference is minimum.
In a ^@3^@-digit number, the hundreds digit is ^@four \space times^@ the tens digit while the units digit is ^@six \space times^@ the tens digit. Also, the sum of its digits is ^@11^@. Find the number.
Luningning can complete some work in 6 days, while Benjie can complete the same work in 3 days. They started the work together, and when the work was half complete, Benjie fell ill and Luningning had to finish the remaining work. How long did it take to complete the work?