If P(n, 5) = 20P (n, 3), then n =

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D 8
$P (n, 5) = 20 P (n, 3) \Rightarrow \frac{∠ n}{∠ n - 5} = \frac{20 ∠ n}{∠ n - 3}$ $\Rightarrow (n - 3) (n - 4) = 5 \times 4$ $\Rightarrow n - 3 = 5 \Rightarrow n = 8$

Suggest Corrections

Similar questions

^{(}^{2}^{n}^{+}^{1}^{)} P_{_{n}}_{-}_{1} :^{(}^{2}^{n}^{-}^{1}^{)} P_{_{n}} =

3 : 5

=

^{2 n + 1} P_{n - 1} :^{2 n - 1} P_{n} = 3 : 5

n = ?

Join BYJU'S Learning Program