1-There are two examinations rooms A and B. If 10 students are sent from A to B, then the number of students in each room is the same. If 20 candidates are sent from B to A, then the number of students in A is double the number of students in B. The number of students in room A is:
A. 20
B. 80
C. 100
D. 200
2-What is the absolute value of the product of all the integers from -6 to 3, inclusive?
A. -120
B. -15
C. 0
D. 15
E. 120
3-If you write down all the numbers from 1-100, how many times would you write 3?
a. 18
b. 19
c. 20
d. 21
4-Look at this series: 21, 9, 21, 11, 21, 13, 21, ... What number should come next?
A. 14
B. 15
C. 21
D. 23
5-A is two years older than B who is twice as old as C. If the total of the ages of A, B and C be 27, the how old is B?
A. 7
B. 8
C. 9
D. 10
E. 11
6-A basket of 1430 apples is divided equally among a group of apple lovers. If 45 people join the group, each apple lover would receive 9 apples less. How many apples did each person get before 45 people joined the feast?
A. 20
B. 21
C. 22
D. 23
E. 24
7-If 20% of a = b, then b% of 20 is the same as:
A. 4% of a
B. 5% of a
C. 20% of a
D. None of these
Answers:
1-C2-C
3-C
4-B
5-D
6-C
7-A
can u expain ur plz?
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