Sum of the seventeen numbers

The sum of the 17 different natural numbers is 154. Determine the sum of the two largest ones.

Correct answer:

s =  34

Step-by-step explanation:

a1=1 d=1 n=17 a17=a1+d (n1)=1+1 (171)=17 s17=a1+a172 n=1+172 17=153  s=16+18=34   Verifying Solution:   S=1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+18=154



Did you find an error or inaccuracy? Feel free to write us. Thank you!



avatar







Related math problems and questions:

  • Find the sum
    arithmet_seq Find the sum of all natural numbers from 1 and 100, which are divisible by 2 or 5
  • Statistics
    lines_globe The sum of all deviations from the arithmetic mean of the numerical sequence 4, 6, 51, 77, 90, 93, 95, 109, 113, 117 is:
  • Consecutive numbers
    progression Sum of ten consecutive numbers is 105. Determine these numbers (write first and last).
  • Geometric progression
    exp In geometric progression, a1 = 7, q = 5. Find the condition for n to sum first n members is sn≤217.
  • Sum of four numbers
    seq The sum of four consecutive natural numbers is 114. Find them.
  • Finite arithmetic sequence
    seq_sum How many numbers should be inserted between the numbers 1 and 25 so that all numbers create a finite arithmetic sequence and that the sum of all members of this group is 117?
  • Numbers
    ten Determine the number of all positive integers less than 4183444 if each is divisible by 29, 7, 17. What is its sum?
  • The sum 2
    seq The sum of five consecutive even integers is 150. Find the largest of the five integers. A.28 B.30 C.34 D.54 Show your solution and explain your answer.
  • Series
    fib Your task is express the sum of the following arithmetic series for n = 14: S(n) = 11 + 13 + 15 + 17 + ... + 2n+9 + 2n+11
  • Two geometric progressions
    exp_growth Insert several numbers between numbers 6 and 384 so that they form with the given GP numbers and that the following applies: a) the sum of all numbers is 510 And for another GP to apply: b) the sum of entered numbers is -132 (These are two different geome
  • Octahedron - sum
    8sten On each wall of a regular octahedron is written one of the numbers 1, 2, 3, 4, 5, 6, 7 and 8, wherein on different sides are different numbers. For each wall John make the sum of the numbers written of three adjacent walls. Thus got eight sums, which also
  • Digits
    seq Show that if x, y, z are 3 consecutive nonzero digits, zyx-xyz = 198, where zyx and xyz are three-digit numbers created from x, y, z.
  • The sum
    eq222 The sum of the squares of two immediately following natural numbers is 1201. Find these numbers.
  • Diofant equation
    eq222 250x + 120y = 5640
  • Remainders
    dividing It is given a set of numbers { 170; 244; 299; 333; 351; 391; 423; 644 }. Divide this numbers by number 66 and determine set of remainders. As result write sum of this remainders.
  • Cuboid walls
    cuboid Calculate the cuboid volume if its different walls have an area of 195cm², 135cm², and 117cm².
  • Gauss
    kfgauss Help little C.F. Gauss sum all the integers from 1 to 400.