# Two brothers fishing problem

by Anthony Lahmann   Last Updated October 10, 2019 05:20 AM

Two brothers A and B are fishing. Person A says he got 10 fish. Person B says he got 12 fish. However, person A says: You need to multiply any number B says by $$\frac{3}{4}$$ to get the real answer! Person B says: You need to add $$1$$ to any number A says to get the real answer! How many fish did A catch? How many fish did B catch?

Tags :

Just follow the instructions. $$12*\frac{3}{4}=9$$, so B caught 9 fish. $$10+1=11$$, so A caught 11 fish.

H Huang
April 15, 2019 02:34 AM

B said he got 12 fish, but according to As statement he got 9 fish.

A said he got 10 fish but according to Bs statement he got 11 fish.

A:11& B:9

Samar Imam Zaidi
April 15, 2019 02:39 AM

B says: $$A_{true}(x) = x + B_{true}(1)$$

A says: $$B_{true}(x) = x \cdot A_{true}\left(\frac{3}{4}\right)$$

$$\implies B_{true}(x) = x \cdot \left(\frac{3}{4} +B_{true}(1)\right)$$

Edit: As Anthony Lahmann mentioned in the comment, the first equation itself implies

$$B_{true}(1) = \frac{3}{4} + B_{true}(1)$$

which is a contradiction immediately.

user1952500
April 15, 2019 02:56 AM

## Related Questions

Updated July 28, 2017 01:20 AM

Updated May 19, 2016 07:52 AM

Updated May 01, 2018 16:20 PM

Updated May 24, 2017 21:20 PM