The average age of 12 students is 20 years. If the age of one more student is included, the average decreases by 1. What is the age of the new student?
1) 5 years '
2) 7 years '
3) 9 years
4) 11 years
The average of 30 results is 20 and the ...
The average age ...
The average sales of gas lighters of 24 salesman ...
INTEGER : DECIMAL : : 1. 100 : 10 2. 1 : 0 3. decimal : fraction 4. whole ...
CHALK : BLACKBOARD : : 1. door : handle 2. table : chair 3. ink : paper ...
RIFLE : SOLDIER : : 1. bow : arrow 2. sword : knight 3. horse : cowboy 4. ...
[Analogies] OXYGEN : GASEOUS : : 1. feather : light 2. mercury : fluid ...
[Analogies]
OXYGEN : GASEOUS : : 1. feather : light 2. mercury : fluid ...
[Analogies ] AGILE : ACROBAT : : 1. grease : mechanic 2. peanuts : ...
[Analogies ]
AGILE : ACROBAT : : 1. grease : mechanic 2. peanuts : ...
[Analogies] INSULT : INVULNERABLE : : 1. success : capable 2. poverty ...
INSULT : INVULNERABLE : : 1. success : capable 2. poverty ...
VANILLA : BEAN : : 1. tabasco : stem 2. chili : flower 3. mint : fruit 4. ...