Of the 5 numbers whose average is 72, the first is 1/8 times the sum of other 4. The first number is _______ Find the average of all the numbers between 6 and 34 which are divisible by 5? The average of the first 5 prime numbers greater than 60 is ? Find the average of first 4 multiples of 5? Find the average of first 30 natural number? Find the average of all prime numbers between 35 and 60? The average of the test scores of a class of p students is 70, and the average of the test scores of a class of q students is 92. When the scores of both classes are combined, the average is 86. What is the value of (p/q)? A school has four sections in a class X having 40, 35, 45 and 42 students. The mean marks obtained in a Chemistry test are 50, 60, 55 and 45, respectively for the four sections. Then, the overall average of the marks per student is? A boat goes a certain distance at 40 km/hr and comes back the same distance at 24 km/hr. What is the average speed (in km/hr) for the total journey? The average of 27 numbers is 60. If one number is changed from 28 to 82 the average is? Eight consecutive numbers are given. If the average of the two numbers that appear in the middle is 6, then the sum of the eight given numbers is? The average of 10 numbers is calculated as 15. It is discovered later on that while calculating the average one number, namely 36, was wrongly read as 26. The correct average is? The average of seven consecutive positive integers is 26. The smallest of these integers is? The average mark secured by 36 students was 52. But it was discovered that an item 64 was misread as 46. What is the correct mean of marks? The ratio of ducks and frogs in a pond is 37: 39 respectively. The average number of ducks and frogs in the pond is 152. What is the number of frogs in the pond? The average of 8 consecutive natural numbers is 38.5. What is the largest of these 8 numbers? The average of 5 consecutive even numbers A, B, C, D and E is 106. What is the product of B and D ? The average age of a man and his son is 40 yr. The ratio of their ages is 7:3 respectively. What is the man’s age ?