Question: Heights of 6 Children

Comment on Heights of 6 Children

is it also plausible to find the sum of the heights of both groups, and then solve for the gap? or is that likely to be too slow?
sum of M+A height = 42
Sum of O, E, K= 150
sum of all = 279
sum of everybody except R = 234
279-234 = 45?
greenlight-admin's picture

That's a perfectly valid solution. In fact, it's very similar to the first approach I used in the video.

Cheers,
Brent

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