Question

R 5 per annumn T-1 1/3 years )P 2490
$p \: = \: 2490 \: r \: = 5\% \: per \: annum \: t \: = 1 \times \frac{1}{3}$
​

Answer 1

The given plane x/a + y/b + z/c = 1 cuts the coordinate axes respectively at the points A(a, 0, 0), B(0, b, 0), C (0, 0, c) . Therefore, volume of the tetrahedron OABC = (1/6)[a b c] = (1/6)(abc) .where a = vector OA etc .