Numbers Test 12

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Average age of students of an adult school is 40 years. 120 new students whose average age is 32 years joined the school. As a result the average age is decreased by 4 years. Find the number of students of the school after joining of the new students?

Question 1/30

121

81

27

8 kg

Question 2/30

1

0

-1

1/3

Question 3/30

7

6

3

8

Question 4/30

ab 2

ab

a b 1

a b

Question 5/30

149

150

151

156

Question 6/30

10H < g! <10H

10H < g! < 10

H < g! < 10H

10H < g! < H

Question 7/30

8

6

4

2

Question 8/30

11

9

5

3

Question 9/30

4, 1

3, 2

2, 3

1, 2

Question 10/30

25

32

55

50

Question 11/30

34

35

36

37

Question 12/30

7/18

18/7

23/5

12/3

Question 13/30

182

176

101

99

Question 14/30

9

10

11

12

Question 15/30

5

11

10

15

Question 16/30

-1/18

-8/27

0

-32/27