Two standard number cubes are thrown. Find the probability that the sum of the numbers showing is seven given that the first number cube shows a one.

Question

anonymous · Answer

A) 1/26
B) 1/6
C) 1/8
D) 1/14

anonymous · Answer

unless the first is a typo, notice that the one multiple of 36 is 6, so u dont even have to calculate anything its b

campbell_st · Answer

well there are 6 x 6 possible sums 

draw a tree diagram to find the number of 7s that are possible

|dw:1367350345979:dw|

so its the number of ways of getting 7 over the total possible numbers of 36