Interested to Buy Any Domain ? << Click Here >> for more details...
19.) 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)
a)1/3
b)2/3
c)23/36
d)11/18
ans:
20.) 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)5/36
b) 2/9
c) 7/36
d) 1/6
- 3 Answers
- 7921 Views
- I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / abhishek
19 d.
for any number of a(1-6) and for b(2,4,6) the resultant a^b will be a perfect square hence probability + for a=4,1 and b=1 =(6C6 * 6C3)/36 +(6C1 * 6C1)/36+1/36=22/36=11/18
| Is This Answer Correct ? | 2 Yes | 1 No |
Answer / dipashri
19) answer= d)11/18
a=1 & b= 1/2/3/4/5/6 (6 possibilities)
a=2/3/5/6 & b=2/4/6 (12 possibilities)
a=4 & b=1 (1 possibility)
18/6=11/18
| Is This Answer Correct ? | 2 Yes | 2 No |
Answer / dipashri
19) answer= d)11/18
a=1 & b= 1/2/3/4/5/6 (6 possibilities)
a=2/3/5/6 & b=2/4/6 (12 possibilities)
a=4 & b=1/2/4/6 (4 possibilities)
22/36=11/18
20) answer= b) 2/9
a=1 b=1/4 (2 possibilities)
a=2 b=2
a=3 b=3
a=4 b=1/4 (2 possibilities)
a=5 b=5
a=6 b=6
answer= 8/38=2/9
| Is This Answer Correct ? | 1 Yes | 1 No |
two friends A,B are running up hill and then to get down! length if road is 440 yards A on his return journy met B goin up at 20 yards from top,A has finished the rase .5 Minuit earlier than B,then how much time A had taken to complete the rase.
If A is travelling at 72 km per hour on a highway. B is travelling at a speed of 25 meters per second on a highway. What is the difference in their speeds in m/sec.
Every day a driver comes to pick up a man at his office at 6pm. One day the man gets free early and rather than waiting for the driver, he starts walking for home at 4:30pm. The man meets the driver on the way and then reaches home 30minutes earlier than usual. What is the usual time that man takes to reach home from the office?
How would you write this as an equation ? (Algebra problem ) how would you write: Twice a number is one more than the square of that number? and Two more than a the square of a positive number is thirty- eight. plzz answer asap .
hii all...on 30th have given the exam of bob[bank of baroda]?? so how many of u have appreared for this above exam?? ur valuable comments r appreciated....
how do you see the impact of al-quaeda on india
In a arithmetic reason 10,9,60,90,70 and 66.. .whats the next number with conclusion
in a class, 20 opted for physics,17for maths,5for both and 10 for other subjects.the class contains how many students ?
Plz email me question papers of Aptitude test for SBI PO exam.
0 Answers State Bank Of India SBI,
There are 1997 doors in the courts. 1997 people came out from each door. One door is closed. That many people came out from each door. This continues till a single person come out of the single open door. Find the no of people inside the court?
What are applications of half adder circuit?
All birds are animals. All animals are four legged. Implications a. All animals which are four legged are birds. b. All birds are four legged c. Some birds are four legged d. Some birds are animals but not four legged.
English 
