Practice Average – A candidate who gets 20% marks fails by 10 marks but another candidate who gets 42% marks gets 12% more than the passing marks. Find the maximum marks.
Practice Average – If the price of petrol increases by 25%, by how much must a user cut down his consumption so that his expenditure on petrol remains constant?
Practice Average – After decreasing 24% in the cost price of an article,its costs Rs.912. Find the actual cost of an article?
Practice Average – Third proportion of 10 and 20 is
Practice Average – The mean of 50 observations was 36. It was found later that an observation 48 was wrongly taken as 23. The corrected new mean is :
Practice Average – The average temperature for Monday, Tuesday, Wednesday and Thursday was 48 degrees and for Tuesday, Wednesday, Thursday and Friday was 46 degrees. If the temperature on Monday was 42 degrees. Find the temperature on Friday ?
Practice Average – The average of 20 numbers is zero. Of them, at the most, how many may be greater than zero ?
Practice Average – The average of two numbers is M. If one number is N, then the other number is :
Practice Average – The average weight of 6 men decreases by 3 kg when one of them weighing 80 kg is replaced by a new man . The weight of the new man is
Practice Average – 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?
Practice Average – The average height of 30 boys out of a class of 50, is 160 cm. If the average height of the remaining boys is 165 cm, the average height of the whole class (in cm) is :
Practice Average – The average of three numbers is 20. If two numbers are 16 and 22, the third is :
Practice Average – In a market survey, 20% opted for product A whereas 60% opted for product B. The remaining individuals were not certain. If the difference between those who opted for product B and those who were uncertain was 720, how many individuals were covered in the survey ?
Practice Average – The average weight of 3 men A, B and C is 84 kg. Another man D joins the group and the average now becomes 80 kg. If another man E, whose weight is 3 kg more than that of D, replaces A then the average weight of B, C, D and E becomes 79 kg. The weight of A is :
Practice Average – The average of the first five prime numbers greater than 20 is: