Question
A teacher noticed a strange distribution of marks in the
exam. There were only three distinct scores: 6,8 and 20. The mode of the distribution was 8. The sum of the scores of all the students was 504. The number of students in the most populated category was equal to the sum of the number of students with lowest score and twice the number of students with the highest score. The total number of students in the class wasSolution
The correct answer is D
The speed ratio of Y and Z is 5 : 4. If Y increases his speed by 25%, he can cover 300 km in 4 hours. How long will Z take to travel 192 km?
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