When two unbiased dice are tossed simultaneously, the
numbers that appear on the top surface of the two dice are a
and b.What is the probability that a^b is a perfect square?
(a^b=a to the power of b)
Answer Posted / aneesha
The combinations are the following:
(1,1)(1,2)(1,3)(1,4)(1,5)(1,6)
(2,2)(2,4)(2,6)
(3,2)(3,4)(3,6)
(4,1)(4,2)(4,3)(4,4)(4,5)(4,6)
(5,2)(5,4)(5,6)
(6,2)(6,4)(6,6)
Thus prob= 24/36 = 2/3 = 0.667
| Is This Answer Correct ? | 11 Yes | 4 No |
Post New Answer View All Answers
At six o'clock the wall clock struck 6 times . Checking with my watch , I noticed that the time between the first & last strokes was 30 seconds . How long will the clock take to stike 12 at mid night
Four Members A, B, C, D are playing a game .A person losing a game should double the amount of others .B, C, D are losing in order after three games .The amount after 3 games are A&B having 40,D is having 16&C 80. Who started with greatest amount of money?
The average score of a cricketer for 13 matches is 42 runs. If his average score for the first 5 matches is 54, then what was his average score (in runs) for last 8 matches?
In a company 241 apply for posts. of them 40 know neither c nor c++.180 know c; 186 knows c++. how many people know only c.
2 oranges,3 bananas and 4 apples cost Rs.15 . 3 oranges 2 bananas 1 apple costs Rs 10. what is the cost of 3 oranges, 3 bananas and 3 apples ANs Rs 15.
there are two categories of persons in ratio a:b = 2:3. A type earns 2.5 dollars/hr and b type 1 dollar/hr total money earned by both is 24dollars. Then what is the total number of persons
Four persons can cross a bridge in 3, 7, 13, 17 minutes. Only two can cross at a time. Find the minimum time taken by the four to cross the bridge.
two trees are there. one grows at 3/5 of the other. in 4 years, total growth of trees is 8 ft. what growth will smaller tree will have in 2 years.
Work can be done by 8 men and 10 women in 25 days, the same work can be done by 10 children and 5 women . in how many days 2 children and 3 men can do the work?
Price of product is reduced by 30%. What % should be increased to make it 100 % ?
guttural : throat :: gastric :
sir i need rrb secunderabad goods guard previous exam model papers
If a refrigerator contains 12 cans such that 7 blue cans and 5 red cans. In how many ways can we remove 8 cans so that atleast 1 blue can and 1 red can remains in the refrigerator?
A small town's industries have a total turnover of Rs. 25,00,000. If the town council plans to raise Rs.170,000 through octroi levy, what % levy should it charge on the industries?
one question has last part like difference between two terms is 9 and product of two numbers is 10, what is the squares of sum of numbers?