Answer:
Step-by-step explanation:
Given that a hat contains n coins, f of which are fair, and b of which are biased to land heads with probability 2/3
A coin is drawn from the hat and tossed twice. The first time it lands heads, and the second time it lands tails.
There are two possibilities. Either fair coin is drawn or biased is drawn.
Let A1 = I coin drawn and A2 = II coin is drawn.
B= the first toss lands head and II tails.
Prob it is a fair coin =
Answer:
$126
Step-by-step explanation:
P=$1600
R=5.25%
T=18/12=3/2
NOW
WE HAVE,
S.I=PTR/100
=(1600*3/2*5.25)/100
=25200/200
=$126
HENCE,$126 is earned.
Answer:
£152.
Step-by-step explanation:
We have been given that a bottle contains 255 coins. 1/3 of the coins are £1.00.
Let us find 1/3 of 255 to find the number of £1 coins.
This means we have £85.
We are also told that 110 of the coins are 50 p coins.
Let us figure out number of 20 p coins by subtracting the number of £1 coins and 50 p coins from 255.
Now let us find total value of the coins contained in the bottle by adding the values of £1 coins, 50 p coins and 20 p coins.
Therefore, the total value of the coins contained in the bottle is £152.
Answer:
B
Step-by-step explanation:
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