IQ Challenge - Family CrossDescription:
Please help this familiy to cross to the other side of the bridge.
It is night. There is only ONE lamp.
A maximum of 2 persons can cross at one time, and they must have the lamp with them.
Each person walks at a different speed: 1 sec, 3 sec, 6 sec, 8 sec and 12 sec.
A pair must walk together at the rate of the slower person.
The lamp enough for 30 sec only!!Instuctions:
1) Click the ball to select and un-select them;
2) Click the lamp to go or back;
3) 2 balls selected to go, 1 selected to back.Keywords:
IQ bridge cross brain skill