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It turns out that greater than 50 percent of the Harvard students could not manage to correctly answer a logical problem. The puzzle involves a bat and ball which cost a total of $1.10. The bat itself is said to cost precisely a dollar more than the baseball. The question is, how much does the baseball cost? In case you thought the answer is ten cents, you are wrong, folks.

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ball=x

bat=x+1

x+x+1=1.10

2x=1.10-1

x=0.10/2

ball=0.05

0.05 ball means bat is 1.05

cost of the ball $.05

cost of bat is cost of ball @ $.05 plus $1.00 dollar more = $1.05

Total cost of bat and ball is $.50 (ball) plus $1.05 ( bat) = $1.10

I’m 70 years old and have only a high school education

You just need to think it out and READ CAREFULLY

That would equal $1.55 but I can see your typo.

Lets consider the ball = X

then bat=X+1

so the given equation becomes,

X+X+1=1.10

2X=1.10-1

2X=.10

X=.10/2

X=.5

so the ball costs .5$ 😛

0.1/2 = 0.05

I went straight for the algebra solution too

the ball cost x$

the bat cost x 1$

both cost 1.10$

therefore

x x 1=1.10

2x 1=1.10

2x=0.10

x=0.05$

therefore the ball cost 0.05$

Let Bat = a

Let Ball = b

Given a+b = 1.10

And a = 1.00

So Ball = a – b

= 1.00 – b

Therefore b must = 10

This must be the only logical, and mathemtical correct answer.

If you were to go into the shop and ask to buy just the ball for 0.05$ you would be laughed out of the shop!