The mean proportional between 7 and 112 is:
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e. 28.
Concept used:
When a, x, and b are in mean proportion
⇒ x2 = ab
Calculations:
According to the question;
Mean proportion = √(7 × 112) = √784 = 28