How long does it take 2 consultants to create a slide deck of 120 slides, assuming one consultant make 2 slides per hour?

It would take 2 consultants 30 hours to create a slide deck of 120 slides.

Explanation:

Rate of slide making by one consultant - 2 slides per hour

Target - 120 slides

2 consultants are employed in the job-

Since 2 consultants are employed in the job, total rate of making slides per hour would be 4 slides/hour (2*2 slides/hour)

Time required to complete 120 slides = total slides/rate of doing slides per hour

Substituting the values, we get

Time required = 120/4 = 30 hours

Hence, it would take 30 hours for 2 consultants to create a slide deck of 120 slides.