Giáo sư Sullivan mất 11 phút để đi qua cột đèn thứ 12 trên một con đường vắng. Hỏi sau 30 phút, ông đi qua bao nhiêu cột đèn?

It takes Professor Sullivan 11minutes to stroll past the twelfth lamp post along a quiet road. How many lamp posts will he stroll past after 30 minutes.

.There are 16 rows of  seats in a school hall. There are 75 seats in the last row. If there is an increase of 3 seats, starfting from the first row, 
a.How many seats are there in the first row?
b. How many seats are there in the school hall?

In a school, there are four Primary 5 clases. There are 2 monitors in each class. For every fortnight's monitor meeting, only one monitor from each class is required to attend. 

A,B,C,D attended the first meeting.

E,B,F,D attended the second meeting.

A,E,B and G attended the third meeting.

If H had not attended any of these meetings, state the two monitors in each class.

Question 1

The bus will take one hour then the train take three and a half hours morethan the bus from Bella is hours to her grandmother is  house Bella need half an hour to change between them How long will the whole joumey take ?

Question 2

There are .......... distinct 4 - digit numbers from 0; 1;2;3;4 

Question 3

Jenny gets $6 each week Jane gets double that amount How much did they get together in January ?

Câu 5:
Subtract 85 from the sum of 2348 and 788. How many tens are there in the result?
Answer: ..........

 8 liters of oil is filled in the first can ;

6 liters of oil is filled in the second can ;

how many liters are there in each can If they are filled equally?

anwer:...liters

there are k student in a class, only one of whom is a junior. If 5 seniors are added to the class, how many students in the class will not be juniors? có lời giải đầy đủ nhé