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JANNELBRIZUELAIN
Answered

in three arithmetic means are inserted between 25 and 65,find the second arithmetic mean.?​

Sagot :

BRIKONA19IN

Answer:

2nd term was 45

Step-by-step explanation:

equation on this sequence will be

20n+5

so

20(2)+5 = 45

KIMDMASTER123IN

Answer:

Answer : 45

Step-by-step explanation:

Shortcut for this one is

= (25+65)/2

= 90/2

= 45

Alternative Solution:

An = A1 + (n-1)d

65 = 25 + (5-1)d

40 = 4d

d = 10

A3 = 25 + (3-1)(10)

A3 = 25 + 2(10)

A3 = 25 + 20

A3 = 45

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