Related Questions

What is the average of all the multiples of ten from 5 to 185 inclusive?
A 90
B 95
C 100
D 110
What is the average (arithmetic mean) of all multiples of 10 from 10 to 400 inclusive ?
A 190
B 195
C 200
D 205
Two hundred multiples of seven are chosen at random. and 300 multiples of eight are chosen at random. Approximately what percentage of the 500 selected numbers are odd?
A 20%
B 25%
C 40%
D 80%
Three math classes , X, Y , and Z, take an algebra test. The average score in class X is 83. The average score in class Y is 76. The average score in class Z is 85. The average score of all students in classes X and Y together is 79. The average score of all student classes Y and Z together is 81. What is the average for all the three classes?
A 81
B 81.5
C 82
D 84.5
Ten fabrics of different colors are displayed on ten racks in a cloth store. The racks are placed one after another and numbered consecutively from one to ten. Each rack contains fabric of a single color. One fabric is green , two fabrics are brown , three fabrics are purple and remaining four fabrics are red. If a purple fabric is on rack two and red fabrics are on racks three and four , the green fabric must be on which of the following racks?
A Five
B Six
C Seven
D Eight
How many positive integers less than ten thousand are multiples of both eight and eighteen.
A 70
B 72
C 138
D 139
Three maths classes: X, Y, and Z take an algebra test. The average score of class X is 83. The average score of class Y is 76. The average score of class Z is 85. The average score of class X and Y is 79 and the average score of class Y and Z is 81. What is the average score of the combined classes X, Y, and Z?
A 81
B 81.5
C 82
D 84.5
How many bits are required to encode all twenty six letters ten symbols, and ten numerals?
A 5
B 6
C 2
D 3
E None of the above
Average of first five multiples of 3 is :
A 3
B 9
C 12
D 15
The average of first five multiples of 3 is
A 3
B 9
C 13
D 15

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