Hello all,
How would you solve the following in 1 min:
The market size is $50B and is expected to grow by 30% per year for the next 5 years?
I got this question in a case interview and ended up doing the real math rather than using Rule of 72, which I thought wasn't applicable here, but I maybe wrong. My calculation took almost 2-3 mins.
Hi there,
72 / 30 = 2.5
That means it doubles every 2.5 years.
As it turns out, the case question really conveniently asks you for the 5 year period…how convenient! (Sarcasm…it's planned!)
So, your investment will double twice.
The answer is $200B
Hello!
The rule still applies! You need to see that 2.5 times 30 is approx. 72 (75, but we need to train the eye to see this kind of “almost” in the math, since they are the trick)
Cheers,
Clara
