问题 解答题
解答问题
①一堆煤,第一次用去40%,第二次又用去它的
1
5
,两次共用去36吨.这堆煤共有多少煤?
②做20节圆柱形铁皮烟囱,每节烟囱长2.5米,横截面的直径是40厘米,一共要用多少平方米的铁皮?
③在比例尺是
1
600000
的地图上,量得甲乙两地的距离为25厘米,上午9点30分,有一架飞机从甲地飞往乙地,上午10点10分到达.问这架飞机每小时飞行多少千米?
④某城市接以下规定收取每月煤气费,每户用煤气在60立方米以内的部分按每立方米0.8元收费,超出60立方米的部分按每立方米1.2元收费.王芳家上月交煤气费60元.她家上月用煤气多少立方米?
⑤小明从甲地去乙地开会,小亮从乙地去甲地卖货物,两人同时从两地相对出发,小明与小亮的速度之比是5:3,
(1)如果相遇时,小明走了200千米,小亮走了多少千米?
(2)如果1小时两人相遇,那么相遇后,小明、小亮到达各自的目的地分别还需要多少时间?
(3)如果相遇时小明比小亮多走了32千米,则甲,乙两地相距多少千米?
答案

①36÷(40%+

1
5
),

=36÷

3
5

=36×

5
3

=60(吨);

②40厘米=0.4米,

3.14×0.4×2.5×20,

=3.14×20,

=62.8(平方米);

③25÷

1
600000

=25×600000,

=15000000(厘米);

15000000厘米=150千米;

10时10分-9时30分=40分,

40分=

2
3
小时,

150÷

2
3
=150×
3
2
=225(千米/小时);

④(60-0.8×60)÷1.2+60,

=(60-48)÷1.2+60,

=12÷1.2+60,

=10+60,

=70(立方米);

⑤(1)200÷5×3,

=40×3,

=120(千米);

(2)200÷120=1

2
3
(小时),小亮用的时间;

120÷200=

3
5
(小时),小明用的时间;

(3)5+3=8(份),

32÷(

5
8
-
3
8
),

=32÷

1
4

=32×4,

=128(千米);

答:①这堆煤共有60吨煤,②一共要用62.8平方米的铁皮,③这架飞机每小时飞行225千米,④她家上月用煤气70立方米,⑤(1)小亮走了120千米,

(2)小明、小亮到达各自的目的地分别还需要

3
5
小时、1
2
3
小时,(3)甲,乙两地相距128千米.

阅读理解

                                                                    GARDEN  RESTAURANT

Telephone: 2706630

Address: 9020 Bridgeport Road

Open: Mon. to Fri. 7:00a.m.—2:30p.m.and 5:00 p.m.—9:00p.m.

          Sat. 7:00a.m.—11:00a.m. and 5:00p.m.—9:30p.m.

          Sun. 11:00a.m.—2:00p.m. and 5:00p.m.—9:30p.m.

                                                                NEW YORK MUSEUM

Telephone: 364431

Address: Vanier Park, 1100 Chestnut St. New York America’s largest museum specializing in

          American history and part of our native people.

Open: Mon. to Fri. 9:00a.m.—5:00p.m. (Monday free)

          Sat. 9:00a.m.—1:00p.m.

                                                LANSDOWNE PARK SHOPPING CENTER

TELEPHONE: 3562367

Address: 5300 No.3 Road

Open: Mon. Tues. and Sat. 9:30a.m.—5:30p.m.

          Wed. Thurs. and Fri. 9:30a.m.—9:30p.m.

          Sun. 11:00a.m.—5:00p.m.

                                                           SKYLINE HOTEL

Telephone: 2785161

Address: 3031 No.3 Road ( at Sea island Way)

The Hangar Den: Wed. to Sun. Lunch from 10:30a.m.

Coffee Shop: Mon.—Fri. 6:00a.m. , Sat. 6:00a.m. and Sun. 7:00a.m.

                    Mon.—Wed. to 10:00p.m.; Thurs.—Sun. to 11:00p.m.

1. If you want to go out for lunch on Tuesday you can call up the number      .

A. 2706630  

B. 7364431  

C. 3562367  

D. 2785161

2. You do not have to pay on Monday if you go to      .

A. Skyline Hotel

B. Lansdowne Park Shopping Center

C. New York Museum  

D. Garden Restaurant

3. Suppose you want to enjoy yourself on Sunday mornings, you can go to      .

A. 5300 No.3 Road

B. Vanier Park, 1100 Chestnut St.

C. 9020 Bridgeport Road

D. 3031 No.3 Road

4. What can you do after 9:30 p.m. on Sunday?

A. Visit New York Museum.

B. Do some shopping in Lansdowne Park shopping Center

C. Go to Garden Restaurant

D. Go to the Coffee Shop of Skyline Hotel

单项选择题