CUET Preparation Today
If p is the third proportional to 8,20 and q is the fourth proportional to 3, 5, 24, then find the value of (2p + q). |
140 126 90 104 |
140 |
Using direct formula, Third proportional of A and B = \(\frac{B\; \times\;B}{A}\) p = \(\frac{20\; \times\; 20}{8}\) = 50 p = \(\frac{5\; \times\; 24}{3}\) = 40 2p + q = 100 + 40 = 140
|
