Given that :
log3=0.477 , log4=0.602 and log5=0.699
Now , as you know that

We have to find the value of

So,
=
= 
Now Putting the values of log3, log4 and log5 in the above expression

=1.0079/0.699
=1.5436..
=1.544 (approx)
So, the value of
is 1.544(approx).
Answer:
The answer is -7.15, hope this helps.
Answer:
18 minutes
Step-by-step explanation:
60/40=1.5
12 x 1.5 = 18