Test Yourself: Are You Being Tricked by Intuition? http://t.co/IMLQYSXCd4 — Harvard Biz Review (@HarvardBiz) April 2, 2015
I got the third one 100% right. I messed up the second one and made a bad assumption in the first.
The first one still doesn't make any sense to me.
x = cost of ball cost of bat = x + 1 total cost = 1.10 = x + (x + 1) = 2x + 1 2x = 0.10 x = 0.05 So the ball cost 0.05, the bat costs 1 dollar more than the ball, 1.05, and the total is 1.05 + .05 = 1.10
1.10 = 2x + 1(subtract 1 from both sides of the equation)0.10 = 2x(divide both sides by 2)0.05 = x
# for 3!!Thanks for the coaching, boss, THIMK!!!
That was 3 for 3 ooops
Yes. Easy if one doesn't leap to any conclusions. Understand the question before the answer.
Woo apparently not, 3 out of 3!
I got the third one 100% right. I messed up the second one and made a bad assumption in the first.
ReplyDeleteThe first one still doesn't make any sense to me.
ReplyDeletex = cost of ball
ReplyDeletecost of bat = x + 1
total cost = 1.10 = x + (x + 1) = 2x + 1
2x = 0.10
x = 0.05
So the ball cost 0.05, the bat costs 1 dollar more than the ball, 1.05, and the total is 1.05 + .05 = 1.10
1.10 = 2x + 1
Delete(subtract 1 from both sides of the equation)
0.10 = 2x
(divide both sides by 2)
0.05 = x
# for 3!!
ReplyDeleteThanks for the coaching, boss, THIMK!!!
That was 3 for 3 ooops
ReplyDeleteYes. Easy if one doesn't leap to any conclusions. Understand the question before the answer.
ReplyDeleteWoo apparently not, 3 out of 3!
ReplyDelete