21 5s
20 4s go into 80.
3/5 or 0.6 of them.
5 x 30 = 150
There are infinitely many such numbers. They are of the form 120 + 60n where n = 1, 2, 3, ...
45 x 68 = 3060
6
The answer is 9C4 = 9*8*7*6/(4*3*2*1) = 126 ways.
How many 4s are in 36
36 playing cards in a Russian deck. Russian deck starts with 6s. There are same four suits as American deck but 2s, 3s, 4s and 5s are missing.
Yes they should be if it's the original apple charger. Apple charger support all iPhone mobile. including iPhone 5S/5C/5/4S/4/3GS/3G.
19 divided by 4 equals 4.75