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The average of 18 numbers is 52. The average of the first 8 numbers Is 62 and the average of the next 7 numbers is 45. If the 16th number is 6 less than the 17th number and 17th number is one more than the 18th number, then what is the average of the 16th and 18th numbers?
Questions below followed by three quantities. Find the relationship between them. Quantity I: In a class with a certain number of students if a teacher weighing 78 kg is added, then average weight of class is increased by 2 kg. If one more teacher weighing 66 kg is added, then the average weight of the class increases by 3.5 kg over the original average. What is the original average weight (in kg) of the class? Quantity II: The average age of 16 students and their teacher's age is 16 years. If the teacher's age is excluded, the average reduces by 2. What is the teacher's age? Quantity III: Average weight of three friends A, B and C is 46 kg. Another person D joins the group and now the average is 45 kg. If another person E whose weight is 6 kg more than D, joins the group replacing A, then average weight of B, C, D and E becomes 47 kg. What is the weight of A (in kg)?
In the following question, two statements are numbered as A and B. On solving these statements we get quantities A and B respectively. Solve for the both quantities and choose the correct option. Quantity A: The average of a group of 9 numbers is 115. When a number is added to the group, the new average is 27 more than the number. Find the number. Quantity B: The average of a series of 8 numbers is 96. When two numbers are added to the series, the average is reduced by 3. If the difference between the numbers is 8, find the numbers.
When 54 was added to a set of 15 numbers, the average becomes 24. If two numbers are further added, the average becomes 26. What is the average of the two numbers?
Given below are three quantities named 1, 2 and 3. Based on the given information, you have to determine the relationship between the three quantities. You should use the given data and knowledge of Mathematics to choose between the possible answer. Quantity 1: A and B are competing in a game called, "Get a six". The first one who gets a six on throwing a dice wins. If A starts, what is the probability of B's winning. Quantity 2: When 1 is added to the numerator of a fraction, the fraction becomes 150% of the previous number. If three is added to denominator, the number becomes 1/4. Find the number. Quantity 3: Increase in average weight of group. Average of 12 people is 12.6 kg, 2 people are added to the group. Average weight of new people is 15.3 kg.
There are two rows, each containing 3 numbers. Below are some rules to be used to get the resultant number for each row separately. Use the rule from left to right for each row and find the answer to the question. Rule: 1. If an even number is followed by an even number, then the first number will be subtracted from the second. 2. If an odd number is followed by an odd number, then both will be added. 3. If an odd number is followed by an even number, then the even number will be subtracted from the square of the odd number. 4. If an even number is followed by an odd number, then the odd number will be subtracted from the even number. Row I: 9,11, 34 Row II: 16, 9, 8 What is the difference between the resultant numbers in the first row and the second row
The average of 17 numbers is 55. The average of the first 6 numbers is 49.5 and that of the next 8 numbers is 60.5. The 16th number is 4 less than the 15th number and 6 less than the 17th number. What is the average of the 15th and 17th numbers?
The average of fifteen numbers is 60. The average of the first seven numbers is 63 and the average of next five numbers is 59. The last number is half of the 13th number and the 14th number is four more than the last number. Which of the following is/are correct? I. Average of the last three numbers is an integer II. Fourteenth number is divisible by 11 III. Average of 13th and 15th number is not 65
The average of 13 numbers is 57. The average of the first three numbers is 8 less than that of 13 numbers and the next seven numbers is 2 more than that of 13 numbers. The 11th number is two times the 12th number and 12th number is 1 less than the 13th number. What is the average of 11th and 12th numbers?
Quantity I: The average age of a cricket team of 11 players is x years. After three years, four players leave the team and four new players join in place of them then the current average age becomes (x + 2) years. The current average age of the players who left the team was 18 years then find the average of the current age of the 4 new joiners? Quantity II: In a group of 6 students, the average age of the 5 youngest students is 12 years and the average age of the 5 oldest students is 15 years. What is the average age of all the students? (it is given that the age of them is in arithmetic progression)?