EASY
AS and A Level
IMPORTANT
Earn 100

Two ordinary fair dice are rolled and the two faces on which they come to rest are hidden by holding the dice together, as shown, and lifted off the table.

Question Image

The sum of the numbers on the 10 visible faces of the dice is denoted byT.

Find the number of possible values of T, and find the most likely value of T.

Important Questions on Permutations and Combinations

EASY
AS and A Level
IMPORTANT

Two ordinary fair dice are rolled and the two faces on which they come to rest are hidden by holding the dice together, as shown, and lifted off the table.

Question Image

The sum of the numbers on the 10 visible faces of the dice is denoted byT.

Calculate the probability that T38.

EASY
AS and A Level
IMPORTANT
Three ordinary fair dice are rolled. Find the number of ways in which the number rolled with the first die can exceed the sum of the numbers rolled with the second and third dice. Hence, find the probability that this event does not occur in two successive rolls of the three dice.
EASY
AS and A Level
IMPORTANT
How many even four-digit numbers can be made from the digits 0,2,3,4,5 and 7, each used at most once, when the first digit cannot be zero?
EASY
AS and A Level
IMPORTANT
Find how many numbers there are between 100 and 999 in which all three digits are different.
EASY
AS and A Level
IMPORTANT
Of the numbers between 100 and 999 in which all three digits are different. Find how many of the numbers are odd numbers greater than 700.
EASY
AS and A Level
IMPORTANT
A bunch of flowers consists of a mixture of roses, tulips and daffodils. Tom orders a bunch of 7 flowers from a shop to give to a friend. There must be at least 2 of each type of flower. The shop has 6 roses, 5 tulips and 4 daffodils, all different from each other. Find the number of different bunches of flowers that are possible.
EASY
AS and A Level
IMPORTANT

Three identical cans of cola, 2 identical cans of green tea and 2 identical cans of orange juice are arranged in a row. Calculate the number of arrangements if

the first and last cans in the row are the same type of drink,

EASY
AS and A Level
IMPORTANT

Three identical cans of cola, 2 identical cans of green tea and 2 identical cans of orange juice are arranged in a row. Calculate the number of arrangements if

the 3 cans of cola are all next to each other and the 2 cans of green tea are not next to each other.