Answer: 18 Explanation: Average of 2 numbers= 21 given numbers = 18 and 27 let the other no. be x. ATQ, 18+27+x/3 = 21 => 45+x/3 = 21 => 45+x = 21 x 3 = 63 => x = 63-45 = 18 Therefore the third number is 18. Reply
Answer:
18
Explanation:
Average of 2 numbers= 21
given numbers = 18 and 27
let the other no. be x.
ATQ, 18+27+x/3 = 21
=> 45+x/3 = 21
=> 45+x = 21 x 3 = 63
=> x = 63-45 = 18
Therefore the third number is 18.