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The average of a, b, c is 6 and a - b = 4, ab = 21, what is the value of c?

1. A 6
2. B 7
3. C 8
4. D 9

What is the maximum number of half-pint bottles of cream that can be filled with a 4-gallon can of cream? (2 pt. = 1 qt. and 4 qt. = 1 gal)

1. A 16
2. B 24
3. C 30
4. D 64

In a group of four people the height of the group members are 5 feet 4 inches, 5 feet, 5 feet 6 inches and 4 feet 10 inches. The average height of the group members is:

1. A 5 feet
2. B 5 feet 1 inches
3. C 5 feet 2 inches
4. D 5 feet 3 inches

The average weight for a group of 20 women is 130 pounds. If the average weight for 75% of these women was 140 pounds, what was the average weight in pounds for the rest of the women?

1. A 100
2. B 110
3. C 120
4. D 135

Karim, Rahim, Ram & Shyam have the following probabilities of passing the admission test 20%, 30%, 25% and 50% respectively. What is the probability of Karim, Rahim and Shyam will pass the test?

1. A 0%
2. B 100%
3. C 3%
4. D 30%

Francis had an average of 75 on her first four Geometry test. After taking the next test her average dropped to 72. How much did she get in fifth test?

1. A 54
2. B 58
3. C 60
4. D 73.5

Average of the five consecutive even number is 8. Which is the smallest of the 5 numbers?

1. A 3
2. B 4
3. C 5
4. D 6

A train passes city X at 8.25 am and city Y at 11.05 am. The distance between city X and Y is 320 miles. What is the average speed in miles per hour of the train?

1. A 120
2. B 135
3. C 270
4. D None of these

The average of 6 numbers is 25. If 3 more numbers with an average of 22 are added to these numbers, what will be the average of the combined 9 numbers?

1. A 20
2. B 22
3. C 24
4. D 25

If the sum of (3, 7 and x) is 18, then the average of (3, 7 and x) is--

1. A 6
2. B 7
3. C 8
4. D 9

The average of three numbers is V. If one of the numbers is Z and another is Y, then what is the remaining number?

1. A 3V - Z - Y
2. B V - Z - Y
3. C z/x - z - y
4. D ZY - V

A motorist travels to a place 150 km away at an average speed of 50 km and returns at 30 km per hour. What is his average speed for the whole journey in km per hour?

1. A 35
2. B 37
3. C 37.5
4. D 40