trong ky kiem tra an toan thuc pham o dia phuong em nguoi ta da phat hien cu 10 mau rau cu qua mang xet ngiem thi co toi 4 mau co du luong chat bao quản tren muc cho phep hoi voi cac mau kiem tra do so mau rau cu qua co du luong chat bao quan tren muc cho phep chiem bao nhieu phan tram so mau mang di xet ngiem
nguoi ta dong het so dau vao cac can gom loai can mau xanh va loai can mau do . tinh ra duoc tat ca 60 can . hoi co bao nhieu can mau do biet rang cu dong dau duoc 2 can mau do thi dong duoc 3 can mau xanh
Kiem tra chat luong san pham o mot phan xuong, nguoi yta thay co 162 san pham khong dat chuan . Tinh ti so phan tram cua so san pham dat chuan va tong so san pham cua phan xuong do.
nguoi ta dong het so dau trong thung vao cac can gom loai can mau xanh va can mau do.Tinh ra duoc tat ca 60 can.Hoi co bao nhieu can mau do biet rang cu dong dau duoc 2 can mau do thi dong dau duoc 3 can mau xanh?
hay .3 duong tron co duong kinh bang nhsu tren to giay trang .A,qua tam doan thang chia hinh tron 2 phan bang nhau . hay bieu thi phan so do.b, qua tam ve chia thanh 4 phan bang nhau. em hay to mau 3 phan.phan to mau chiem bao nhieu phamn hinh tron.c,chia hinh tron thanh 16 phan bang nhau va danh dau X ngau nhien 1 so o , 1 so o em to mau .hay cho biet danh dau X vao phan to mau, con lai chiem hinh tyron.,roi xep phan so va so xanh truc quan bang cach dat chung chong len nhau sau do cho biet moi quan he gia phan so
kiem tra toan bo san pham cua xuong may lam trong mot tuan thi thay co 950 san pham dat duoc yeu cau va chiem 95% san pham da kiem tra. hoi qua kiem tra da co bao nhieu san pham chua dat yeu cau
1. Cho phan so 79/104 . Hoi phai cung phai them tu so va mau so bao nhieu don vi thi ta duoc phan so moi co gia tri bang 4/5
2. Cho phan so 55/92 .hoi phai cung bot tu so va mau so bao nhieu don vi thi ta dc phan so moi co gia tri bang 1/2
3 .cho phan so98/115 . Hoi phai cung bot tu so va mau so bao nhieu don vi thi ta dc phan so moi co gia tri = 4/5
4.Cho phan so 86/105 .hoi phai cung phai bot tu so va mau so bao nhieu dong vi thi ta xc phan so moi co gia tri =3/4
5.cho phan so 67/130 .hoi phai cung phai bot tu so va mau so bao nhieu don vi thi ta dc phan so moico gia tri =2/5
6.cho phan so 59/85. Hoi phai chuyen tu tu so xuong mau so bao nhieu don vi thi ta dc phan so moi co gia tri =1/3
7. Cho phan so 59/109 . Hoi phai chuyen tu mau so len gu so bao nhieu don vi thi ta duoc phan so moi co gia tri =3/4 .
Mai minh se nhan tiep con nhieu de lam co giao phat de ve lam ra tet con di thi !!!!
Lay 1 so tu nhien chia cho 5 thi du 3 . Hoi neu thuc hien phep chia tren de thuong la so thap phan thi thuong co phan thap phan la bao nhieu ?
tuan co 80 vien bi
cac mau xanh do trang so bi xanh chiem 2/10 tong so bi sop bi do chiem 5/10 tong so bi hoi tuan co bao nhieu vien bi mau trang
muc luong can bo tang 30 phan tram , gia hang giam 20 phan tram . hoi voi muc luong nay thi luong hang moi se mua duoc nhieu hon luong hang cu bao nhieu phan tram
