The age of Alice is seven times that of Peter now. 6 years later, the age of Alice is three times that of Peter. How old is Alice now?
1/ The average height of 2 boys is 131.6cm . The average height of 4 girls is 128.3cm . What is the average height of all children ?
Answer : ....... cm
2/ Two years ago . Miss Lan's salary was $2300 . She got a 5% increment last year and a 10% increment this year . What is Miss Lan's salary now ?
Answer : $ ...... ?
3/ A rectanglar tank is 50cm long , 40cm wide and 45cm high . The height of the water level in the container is 15cm . How many more litres of water are roquired to fill up the tank compietely ?
Answer : ............. l
Câu 1:
The fourth power of 3 is
Câu 2:
What is the greatest remainder when a number divide by 9?
Answer:
Câu 3:
Câu 4:
.
Câu 5:
100 pupils participate a drawing competition. 58 of them are girls. What percentage of the pupils who participate the competition are boys?
Answer: %
Câu 6:
Maria is 10 years old and her sister is 7 years old. In how many years' time will their total age be 41 years?
Answer: years.
Câu 7:
Câu 8:
Find such that:
Answer:
Câu 9:
Find the last digit of .
Answer: The last digit of is
Câu 10:
Given that the set .
How many elements are there in the set A?
Answer:
the sum of the age of a football coach anh his two members is 100. His age will be the sum of the two members in 12 years time. How old is the football coach?
The average height of 2 boys is 131,6cm. The average height of 4 girls is 128,3. What is the averaga height of all children?
there are four kids .if we compute the total age of three of them at a time ,the sum are 22,20,17,25.what is the different of age between the oldest and the youngest among these four kids
âu 1:
.810:8=8...
Answer: The missing number is
Câu 2:
The fourth power of 3 is
Câu 3:
Find the number n such that 2016n=1.
Answer:
Câu 4:
What is the greatest remainder when a number divide by 9?
Answer:
Câu 5:
Maria is 10 years old and her sister is 7 years old. In how many years' time will their total age be 41 years?
Answer: years.
Câu 6:
Anna is 1.53m tall. What is her height in centimeters?
Answer: (cm)
Câu 7:
510x610=_________10
Câu 8:
Find the last digit of 22016.
Answer: The last digit of 22016 is
Câu 9:
Find the number n such that 58-2x3n=4.
Answer:
Fill in the blank with the suitable sign (>; =;<)
Câu 10:
Compare: 310_______95
there are four kids.If we compute the total ages of three of them at a time, the sums are 22,20,17,25 respectively. What is the difference in age between the oldest and the youngest among is four kids.
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Câu 8:
If n^2=n*n and n^3=n*n*n , what is the value of 2^5?
Answer:
Câu 9:
Joel is three years younger than his brother Jaime. The sum of their ages is fifty-five. How old is Joel?
Answer: years old.
Câu 10:
If your parents give you one penny on Day 1, 2 pennies on Day 2, 4 pennies on Day 3, 8 pennies on Day 4. If the pattern continues, how many pennies will your parents give you on Day 15?
Answer: pennies.