exam Maths Puzzle Numerical Ability

Petunia and Petal worked for 5 hours and completed 1(1/24) jobs. if Petal took 12 hours to do 1 job, how long did it take petunia to do 2 jobs?

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sample final question...trying to study correctly for final :

solve each equation:

log (7x+8) = 2 log x

THANK U THANK U THANK U Hello! Please help me this question think:{ion i}and 1/2oni}.thank you.