maths

posted by .

Find five numbers in A.P. whose sum is 12.5 and the ratio of first to the last is 2 : 3.

  • maths -

    5/2 (2a+4d) = 25/2
    a/(a+4d) = 2/3

    a=2 d=1/4

    2, 2¼, 2½, 2¾, 3, ...

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Ratio

    Three numbers are in the ratio of 3:5:7. If the largest number is multiplied by 3, the result is 26 more than the sum of the first and second numbers. Find the numbers.
  2. Grade 8 Math

    Can you write them in Mathematical/numbers form I'll solve them myself. i don't really get it though i have written the first one in mathematical for but i'm not sure if that's right. 1. When six is subtracted from five times a certain …
  3. maths

    Find two numbers whose sum is 39 and the greater number exceeds the smaller one by five.
  4. math

    three numbers are in the ratio 6:3:1, and the sum of these numbers is 420. If the first number is reduced by 50%, the second number is increased by 42, and the sum of the numbers remains the same, find the resulting ratio of the numbers.
  5. arithmetic

    1. The first and last term of an A.P are, a and l respectively, show that the sum of nth term from the beginning and nth term from the end is a + l. 2. If mth term of an A.P be 1/n and nth term be 1/m, then show that its mnth term …
  6. arithmetic

    1. The first and last term of an A.P are, a and l respectively, show that the sum of nth term from the beginning and nth term from the end is a + l. 2. If mth term of an A.P be 1/n and nth term be 1/m, then show that its mnth term …
  7. Maths progression

    In an AP whose first term is 2,the sum of first five term is one fourth the sum of the next five terms.show that T20=-112. Find S20.
  8. Math

    Two numbers whose are in the ratio 4:3. Their sum is 70. Find the numbers.
  9. math

    5. In a geometric sequence, the sum of the first five terms is 44 and the sum of the next five terms is -11/8. Find the common ratio and first term of the series.
  10. Maths

    The sum to infinity of a convergent is series is 243.The sum of the first five terms 242.Determine the values of the common ratio and the first term

More Similar Questions