(o oqc vA DAo rAo
crio ouc '
VA DAO TAO
on rcru rRA oANn crA NANG LtIc
HQC SINH DI/ TUYEN VAo LoP 6
TRTIONG THCs CHU vAN.I.N,
TRITOI{G THCS CHUA HANG TI
NArvr Hec 2ozo - 2o2t
MON: TOAN
Qhdi gian: 60 philt, kh6ng k€ thdi gian giao di)
al (ru*toto'1 : ?, m
'\363 2r2t) 7
Bii 1. (1,5 di6m). Tim m:
a) 0,8 x //t : I,2 "10
Bii 2. (1,5 di6m). Tinh:
531
a) l- x - * -
'744 b) (48 x 0,75 - 240:10) - (16 x 0,5 - 16:4)
Bii 3. (1,5 ili6m). Trong buOi li6n hoan, khi 15 ban nt ra vA tni si5 bpn cdn lpi c6 s5 nam
g6p d6i si5 nt. Sau d6 14i c6 45 bqnnam ra vC thi sO bpn cdn lpi c6 sti nfi bing s6 nam. Hoi
hic dAu c6 bao nhi6u ban nt tham gia li6n hoan?
BAi 4. (1,5 di6m).Mgt xe m6y di tir A vi dg <linh <Itin B lirc 8 gid 30 phirt, nhmg khi xe
m6y di dugc 10km thi ph6i quay lpi A vd dimg o d6 m6t 15 phirt, sau d6 m6i di ti6p vd cl6n
B lric 9 gio 15 phirt. Tinh vQn t6c cta xe mdy.
Bii 5. (3 di6m). MQt thria ruOng hinh thang c6 diQn tfch td 1155m2 vd c6 ddy bd k6m <l6y
lcrn 33m. Ngudi ta k6o ddi <l6y b6 th6m 20m vd k6o dii cl6y lcrn th6m 5m vO ctng mQt phia
dC duqc hinh thang m6i. DiQn tich hinh thang mdi ndy bturg diQn tfch ctra mQt hinh cht
nhQt c6 chi6u rQng ld 30m vd chi6u dei le 51m. Hdy tinh ddy b6, d6y lon cria thira ruQng
ban dAu.
BAri 6. (1 diem). C6 6 ban thi gi6i Toan, m5i ngudi phii ldm 6 bei. M5i bei dring dugc 2
di6m, m6i Uai sai bf tru 1 di6m, ,rh.*g ntiu s6 di6m bi trt nhi6u hon s6 di6m dpt dugc thi
hgc sinh d6 bi coi ld 0 <tiOm. C6 the chdc chdn it nh6t hai bpn c6 si5 di6m bing nhau dugc
kh6ng? Gi6i thich tpi sao.
utSt