A card is drawn randomly from a deck of ordinary playing cards. You win Rs.900 if the card is a spade or a king. What is the probability that you will win the game?
Let S = the event that the card is a spade; and let A = the event that the card is a King. We know the following: There are 52 cards in the deck. There are 13 spades, so P(S) = 13/52. There are 4 King, so P(A) = 4/52. There is 1 King that is also a spade, so P(S∩A) = 1/52. Therefore, based on the rule of addition: P(S ∪ A) = P(S) + P(A) - P(S∩A) P(S ∪ A) = 13/52 + 4/52 - 1/52 = 16/52 = 4/13.
A vendor has 3 kinds of shakes i.e. chocolate, strawberry and banana. He has 180 litres of chocolate shake, 360 litres of strawberry shake and 540 litre...
The ratio of two number is 13 : 10 and their HCF is 25. then find out their LCM?
The LCM of two numbers is 1991 and their HCF is 23. If one of the numbers is 181, the other number is
A, B and C start running at the same time and at the same point in the same direction in a circular stadium. A completes a round in 720 seconds, B in 10...
Find the total number of Prime factor in the given expression?
315× 56× 68
The least multiple of 19, which on dividing by 5,6,7,8 and 9 leaves remainder 2 in each case is
LCM and HCF of the two numbers are 225 and 15 respectively. One of the numbers is 45, then find the second number.
The HCF of each pair of 5 numbers is 3 and their LCM is 159. Find the multiplication of all the number.
