egbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyu000000000000000000000000.................;;;[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[ơGGGGGBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB.CHI CAN HOI THE THOI
tinh A biet A=1.2+2.3+...+2012.2013
HOI THE THOI NHUNG BIRT CACH LAM LA 3A =...
mot may bom co the nuoc day mot be chua khong co nuoc trong 13 gio 30 phut , may thu hai bom day be mat 4/5 so gio do,may thu ba bom day be mat 5/6 so gio can thiet cho mot minh may thu ba bom day be . hoi neu mo dong thoi ca ba may bom thi sau bao lau day be nuoc
1 thoi hop kim co khoi luong rieng D=8000kg/m khoi co the tich V=150 cm khoi , co khoi luong la 96 kg hoi thoi rong hay dac neu rong thi tinh xem rong bao nhieu
voi nuoc thu nhat chay day mot be khong co nuoc mat 4 gio 30 phut, voi thu hai trong 6 gio 45 phut. luc dau nguoi ta mo voi thu nhat cho chay trong mot thoi gian bang thoi gian can thiet de hai voi cung chay day be, roi sau do mo voi thu hai. hoi bao lau sau khi mo voi thu hai thi be day nuoc
A rat muon lam quen voi nu sinh no,ben nghi ra cach moi co ta toi an o nha hang.Nhung moi bang loi moi nhu thong thuong se de bi tu choi,the la A nghi ra 1 ke,roi noi voi nu sinh do:
-Toi co 2 van de muon hoi co,rat mong co chi tra loi cho la"co" hoac "khong",khong tra loi bang cau khac,dong thoi 2 cau tra loi cua co lai can hoan toan hop li ve mat logich,tuc la khong mau thuan voi nhau.
Nu sinh do nghe the thi bat cuoi,ben gat dau to y dong y nhu the.
Ban co biet,A da hoi the nao de dat duoc muc dich moi duoc nu sinh do di an com voi minh khong?
bai 1 : ban nam danh so sach trong 1 cuon sach day 284 trang = cac so chan 2 , 4 , 6 , 8 ,..........
a, biet moi chu so viet het 1 giay . hoi ban nam can bao nhieu thoi gian de danh so trang trong cuon sach ?
b , chu so thu 300 cua day la chu so nao ?
ban nao tra loi ho minh voi :
so 1234 la mot so co bon chu so sao cho tich cac chu so cua no bang 24 . hoi co tat ca bao nhieu so co bon chu so ma tich cua cac chu so bang 24
cac ban chi can ghi ket qua thoi nha
xa hoi nuoc ta thoi ki do ho chia lam may tang
co 5 dong xu,trong do co 1 dong xu that,chi duoc can 2 lan hoi lan sao co the tim duoc dong xu that
