2
1
20.
2.5
Avreage = Sum/number of values So 10 = sum/2 Multiply both sides by 2: 20 = sum
10
20 . 2+0 = 2 20 divided by 2 makes 10. Is the same for 30,40,50,60,70,80 and 90.
Yes, average is the sum of elements divided by the number of elements Exp:- x1=10, x2=20, x3=30, x4=10. then the average is 10+20+30+10 ------------------ 4 => 17.5 Average = sum of total of element ---------------------------------- no. of elements
1
20.
2.5
The answer is 10. 16+4=20 20/2=10.
20 can be divided by 20 and by 2. 20 divided by 20 equals 1, and 20 divided by 2 equals 10.
In any division sum, such as 5 / 20, the second number is called the divisor.
No; 20 is an abundant number. S = {1, 2, 4, 5, 10} is the set of all positive divisors of 20, excluding itself. The sum of these divisors = 1+2+4+5+10=22 which is greater than 20. Therefore 20 is an abundant number, not a deficient number. When the sum exceeds the number, the number is abundant. When the sum equals the number, the number is perfect. When the sum is less than the number, the number is deficient.
10 < x + 5 < 20
The number 28 is a perfectly reasonable number. The sum of the digits of several numbers is 10. 19 for instance
The sum of the five odd numbers between 10 and 20 is: sum = 5 x (11 + 19) / 2 = 75.