1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
almond37 [142]
4 years ago
5

In a purse there are 30 coins, twenty one-rupee and remaining 50-paise coins. Eleven coins are picked simultaneously at random a

nd are placed in a box. If a coin is now picked from the box, find the probability of it being a rupee coin?
Option 1 : 4/7 Option 2 : 1/2 Option 3 : 2/3 Option 4 : 5/6
Mathematics
1 answer:
Masteriza [31]4 years ago
7 0
The solution to the answer is as follows:


<span>0votes</span><span>answered <span>Aug 8, 2015 </span><span><span>by </span>Shashi Kumar Evangelist <span>(3,082<span> points)</span></span></span></span><span>total coins 30
1 rupee coins 20
50 paise coins 10

1 rupee coin probability 20C11
11 coin are picked 30C11
<span>ans should be = 20C11/30C11 = 2/3</span></span>
I hope my answer has come to your help. God bless and have a nice day ahead!
You might be interested in
How might you use multiple reflections to describe a translation?
andre [41]

Answer:

from one language to another

Step-by-step explanation: or in math In Euclidean geometry, a translation is a geometric transformation that moves every point of a figure or a space by the same distance in a given direction. In Euclidean geometry a transformation is a one-to-one correspondence between two sets of points or a mapping from one plane to another.

4 0
3 years ago
Need help fast please
castortr0y [4]

Answer:

The answer for the first one is 1/f3

the second one is b-5 i think

third one is 8k^5/m4

last one is -9

hope this helped

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
The distance, d in meters, that an accelerating object travels is given by
Nastasia [14]

Answer:

B.Between 2 and 3

Step-by-step explanation:

60÷40

=3/2

8 0
2 years ago
At the school talent show, 1/3 of the people were boys, 3/6 were girls, and the rest were adults. If there were 50 more girls th
strojnjashka [21]

Answer:

150 people

Step-by-step explanation:

Lets call the total amount of people at the talent show x. Since 3/6=1/2, we know that half the people are girls, 1/3 are boys. If we added 1/2 and 1/3 we get 5/6, 1-5/6=1/6, so now we know that 1/6 of the people are adults. Because it says "If there were 50 more girls than adults" so from that we can see that 1/2x =1/6x+50. If we were to simplify the equation, we 1/3x=50, so x=150

3 0
3 years ago
In a beaded necklace 3/12, of the beads
Alexxandr [17]

Answer: 7/12 of the beads are blue and green

Step-by-step explanation: To make both denominators of fraction 3/12 and 1/3 equal, you have to change both denominators to the lowest common denominator. Since the LCD (lowest common denominator) is 12 you have to multiply 1/3 by 4 to make the two denominators match.

1/3 x 4/4= 4/12

Then to find the total fraction of both green and blue beads on the necklace, you simply have to add the two fractions together.

4/12+3/12= 7/12

hope this helps :)

4 0
3 years ago
Other questions:
  • PLEASE HELP! I'M BEING TIMED :(( PLZ HELP!! Which point is an x-intercept of the quadratic function f(x) = (x – 8)(x + 9)? (0,8)
    10·1 answer
  • xia has 16 meters of rope. She cuts off 1/6 of the rope to use as a skipping rope for a party activity. how long is xias skippin
    14·2 answers
  • Choose the equivalent system of linear equations that will produce the same solution as the one given below.
    11·1 answer
  • I need someone to do the three questions please!
    6·1 answer
  • Translation: 4 units left and 4 units up<br> J(−1, −2), A(−1, 0), N(3, −3)
    12·1 answer
  • Solve the equation .<br>a. 5×=35<br>b. 4× = 18<br>c. 6c–2c = 12.​
    10·2 answers
  • Michael started his first job and was paid $521 per week. Michael’s grandmother gave him $220. Generate an equation in the form
    7·1 answer
  • Daniel's gross weekly pay is $882.96. When he gets his first paycheck, Daniel notices that payroll taxes have already been deduc
    7·1 answer
  • Two points located on are J(1,-4) and K(-2,8). What is the slope of ?
    11·1 answer
  • There are 32 students in Mr. Moreno's class and 62.5 percent of the students are girls. How many boys are in the class?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!