Question

One evening Ramesh decided to play a card game Rummy. Rummy is a card game that is played with decks of cards. In decks of cards there are 4 type of card Heart, Diamonds, spades and clubs. In which Heart and Diamond are Red Card while spades and clubs are black card. Each suits starting with Ace, 2,3,4,5,6,7,8,9,10 Jack Queen and King. Here king, queen and jack are know as face card. Ramesh wishes to choosing 4 cards from a deck of 52 cards. In how many of these.
(i) All 4 cards are from different suits.
(a) 12⁴ (b) 20⁴ (c) 13⁴ (d) 13²
(ii) At least 3 are face cards.
(a) 9000 (b) 9295 (c) 4220 (d) 9200
(iii) All 4 cards are of the same colour.
(a) 13320 (b) 1440 (c) 29900 (d) 14400
(iv) All four card are of ace.
(a) 1 (b) 2 (c) 20 (d) 3 .
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Answer 1

Answer:

I doesn't understand brother please explain