IQ question for you ppl

There are 2 non-uniform wooden sticks, both of which can burn for a life-time of exactly 30min. How would you use the 2 sticks to time 45min exactly?

Condition: You are only allowed to use the 2 sticks and a source of fire

There are 2 non-uniform wooden sticks, both of which can burn for a life-time of exactly 30min. How would you use the 2 sticks to time 45min exactly?

Condition: You are only allowed to use the 2 sticks and a source of fire

put the sticks together, burn them, and blow them out after 45 mins

Lol.

I think the answer is, set one alight, when it is finished, light the other at both ends. This accounts for the possibility of the stick burning faster at one end than another.

good

Light the first one on both sides. This will make 15 mins. Then immediately light the other one on one side. 15 + 30 = 45. Tadaaa. You have to assume that both ends of the stick will burn equally though.

Sorry, someone's already answered it, but I wanted to anyways, tee hee.

The version of this that I was made to solve was:

You have two sticks that burn for 1 hr, how do you measure 45 mins?

Very similar to the other one. Anyone want to answer it?

do u light both ends of no. 1 and one end of no.2 when no. 1 has burnt out u light other end of no 2 and when no.2 is burnt out, 45 min has elapsed?

Correct~!

Okay people this questions taken from the Mensa Home IQ Test:

A Certain tank holds 20 gallons of water. When a tap over it is turned on water flows from it into the tank at a rate of 4 gallons a minute. When a plug in the bottom of the tank is pulled out water drains away from the tank at the rate of 6 gallons a minute.

Question:
The tank is empty with the plug in. The tap is turned on for 4 minutes. The plug is then pulled out with the tap left on for another 6 minutes. How many gallons will be left in the tank at the end of this time?