Wipro Company Numerical Ability Averages

In maths exam, 3 students each had a score of 90, 9 students each had a score of 80, 4 students each had a score of 70, and 4 students each had a score of 60. What was the average (arithmetic mean) score for the 20 students?
A. 70.5
B. 75.0
C. 75.5
D. 80.0
E. 80.5

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Wipro Other Question

Cheryl saves $35 each week. If she now has $100 saved, in how many weeks can she first have enough saved to buy a lawn mower that costs $250?
A. 2
B. 3
C. 4
D. 5
E. 6 If the sum of two integers is 6, then it must be true that
A. Both integers are even
B. Both integers are odd
C. Both integers are positive
D. If one integer is negative, the other is positive
E. If one integer is positive, the other is negative