about my sweety car again :)
farmoonesh kheili narmeeeeeeeeeeeeeeeee
ziadiiii narmeeeeeeeeeeeeeeeeeeeeeee
man atse kardam vaghti halam ja oomad didam ye lane avaz kardam :))
man az farmoonesh mitarsam ...... ghablie ham narm bood va man adar dashtam ye angoshty farmoon midadam vali in enghade narme ye atse kardam dastam tekoob khord ye lane avaz shod :)) mitarsam az in farmoonesh :)
rasty belakhare manam zabt dar shodam hala mitoonam oon navari ro ke ali vasam zabt karde boodo goosh konam :) hehe cheghdr chizaye gheri dare :).... vase khodam miroonam o gher midam poshte rol :)
jatoon khali :)
uhan rasty ye masale ham dariim vase class e riazi ke toosh moondim .... albate man eide daram barash vali enghade rahesh toolanie ke belakhare eshtebah mishe toosh..... kasi javabi be fekresh mirese lotfan zoodtar bege.... in 5 nomre bonouse dare ......
soal ine :


Find the number of (a) combinations and (b) permutations of four letters each that can be made from the letters of the word Tennessee?

answers are (a) 17 and (b) 163

but what is the way ?????