Hi,
in an interview I had to solve a problem, which ws conceptually easy, however, to get to total sales I had to solve this: 2*480*360*16*365*0.7
This is perfectly doable, but took me some time. How would you go about it in terms of simplifying and rounding?
Thanks!
Hi,
4 skills might be used here:
Best!
My guess is you need to estime the result rougthly and not go through hard computation. The idea here is to round the numbers
2*48*10*36*10*16*365*0.7 ~ 96*10*36*16*360*7 ~ 100*10*36*36*10*16*7 ~ 10^4*1296*112 ~ 10^5*1296*11~10^5*13*100*11~143*10^7. So rougthly speaking 1.4 billion
Round: 2 x 500(rounded up) x 400(rounded up) x 16 x 300(rounded down to compensate for previous roundings) x 0.7 = 1.34B. The precise answer is 1.41B, so it's within 10%.
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