Question

Arithmetic mean of and is 5 1) eud 15 5 0 3) 5 6 4) 2) 12​

Answer 1

Explanation:

⇒Arithmetic mean =  

7+k+8+4+5

(5×7)+(10×k)+(15×8)+(20×4)+(25×5)

​

 

⇒arithmetic mean =  

7+k+8+4+5

35+10k+120+80+125

​

=14

⇒336+14k=360+10k

⇒4k=24

⇒k=6