Once you attempt the question then PrepInsta explanation will be displayed.
NO OF 4'S |
NO. of 6's |
---|
50 |
0 |
47 |
2 |
44 |
4 |
41 |
6 |
38 |
8 |
35 |
10 |
32 |
12 |
29 |
14 |
26 |
16 |
23 |
18 |
20 |
20 |
17 |
22 |
14 |
24 |
11 |
26 |
8 |
28 |
5 |
30 |
2 |
32 |
So total 17 ways but here it is 4's & 6's both so don't consider 1st one
Final answer: 16 ways
4x + 6y = 200
⇒2x+3y=100
⇒x=
\frac{(100−3y)}{2}=50−(\frac{3}{2})y
As x is an integer, y should be a multiple of 2.
If
y = 0, x = 50
y = 2, x = 47
y = 4, x = 44
...
y = 32, x = 2
So total ways are
\frac{(32-0)}{2} + 1 = 17 ( if 0 6s are possible) otherwise 16