Question

The sum of 10 Arihetic mean between 4$ 26is

Answer 1

Heya......!!!

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First of all let us insert 10 Airthmetic mean between 4 and 26 .

=> Here a = 4 and 10 is the 12th term of A.P .

So ,, 26 = 4 + ( 11 )d

→ 22 = 11 × d

→ d = 2

So , the required series is

➡ 4 , 6 , 8 , 10 , 12 , 14 , 16 , 18 , 20 , 22 , 24 , 26 .

10 AM between 4 and 26 are =>> ( 6 , 8 , 10 , 12 , 14 , 16 , 18 , 20 , 22 , 24 )

=> Now ,, There sum = by applying formulae of sum

♦ Sn = n/2 [ a + l ]

Here ,, n = 10 ,, a = 6 ,, l = 24

Substituting the values.....we get

→ 10/2 [ 6 + 24 ]

→ 5 × 30

➡ 150 is the required answer .

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Hope It Helps You ^_^