kama mtu ni kilaza wa hesabu hawezi kufikiria hii naona kuna views nyingi hakuna mtu anayendika crap wala nini :lol::lol::lol: great thinkers ujanja kwishney .. hili swali lako ni jibu now we need to make a question for this answer oki lets solve this -- there are three switches a b c , and three respective bulbs. but we dont know exact order of bulb . - to find the solution of a problem lazima tu assume initial condition is all the bulb are switched off - now I will not touch switch A hence (X is off) , i will switch on bulb B (for 7 min) then switch it off. hence (so now switch Y is also off) - now i will put switch c on (so one bulb is glowing ). I will go in the room nitakuta only one bulb glowing (that should be Z ) and one bulb warm ( that is Y ) and one bulb that is cold that is X .mkuu jaguar jibu langu lina make sense nina uhakika 98% ni jibu sahihi ..