Practicing Success
Practicing Success
CUET Preparation Today
The mean proportional between a number and 20 is 50. What is that number? |
125 8 100 $10\sqrt{10}$ |
125 |
Let the number be x, Mean proportion between x and 20 = $\sqrt{x\; \times\; 20}$ = 50 Squaring both sides, 20x = 2500 x = 125 |
