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There are 4 consecutive odd numbers, x1 , x2 , x3 and x4 and three consecutive even numbers y1 , y2 and y3 . The average of the odd numbers is 6 less than the average of the even numbers. If the sum of the three even numbers is 16 less than the sum of the four odd numbers, what is the average of x1 , x2, x3 and x4?
There are 4 consecutive odd numbers (x1, x2, x3 and x4) and three consecutive even numbers (y1, y2 and y3). The average of the odd numbers is 6 less than the average of the even numbers. If the sum of the three even numbers is 16 less than the sum of the four odd numbers, what is the average of x1, x2, x3 and x4?
The variance of numbers x1, x2, x3,……xn is V. consider the following statements: 1. If every x1 is increased by 2, the variance of the new set of numbers is V. 2. If the numbers x1 is squared, the variance of the new set is V2. Which of the following statements is/are correct?
The average of twelve numbers is 55.5. The average of the first four numbers is 53.4 and that of the next four numbers is 54.6. The 10th number is greater than the 9th number by 3 but lesser than the 11th and 12th numbers by 2 and 3, respectively. What is the average of the 10th and the 12th numbers?
Sum of 4 consecutive even numbers is greater than three consecutive odd numbers by 81 . If the sum of the least odd and even numbers is 59 then find the sum of largest of odd and even numbers is 59 then find the sum of largest odd and even numbers.
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.
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?
If “multiplication” of two numbers is denoted as “Summation” of two numbers, “Summation” of two numbers is denoted as “Division” of two numbers, “Division” of two numbers is denoted as “Subtraction” of two numbers, and then what is the value of 10 + 5?
Consider the given question and decide which of the following statements is sufficient to answer the question.   All natural numbers are whole numbers?   Statements:  (I) All natural numbers plus 0 are called whole numbers. (II) Whole numbers are different from natural numbers.  
Consider the given question and decide which of the following statements is sufficient to answer the question. All natural numbers are whole numbers?
(I) All natural numbers plus 0 are called whole numbers (II) Whole numbers are different from natural numbers