Рет қаралды 17
Find the number of solutions of x + y + z + w = 20 under the following conditions:
(i) x, y, z, w are whole number
(ii) x, y, z, w are natural number
(iii) x, y, z, w belongs {1, 2, 3, .........., 10}
(iv) x, y, z, w are odd natural number