Two people can complete 60% of a task in t hours, where t must satisfy the equation t 10 + t 15 = 0.6. How long will it take for two people to complete 60% of the task?

0.024h

Step-by-step explanation:

We have the equation:

t 10 + t 15 = 0.6

<=> 25t = 0.6

<=> t = 0.024

It means that, it takes 0.024h for  two people to complete 60% of the task

I hope it will find you well.

t = 3

step-by-step explanation:

put t = 3 in this expression :

(3²-1)(3²-2)(3² - 3)(3² - 4) = 8×7×6×5 = 56×30 = 1680