Related Questions

In a rare coin collection, all coins are either pure gold or pure silver , and there is initially one gold coin for every three silver coins . With the addition of 10 more gold coins to the collection, the ratio of gold coins to silver coins is 1 to 2. Based on this information , how many total coins are there now in this collection (after the acquisition)?
A 40
B 50
C 70
D 90
A certain sum of money consists of 30 coins, some of which are 10 paisa coins and the rest are 5 paisa coins. If the total value of the coins is Tk. 2, what is the number of 10 paisa coins?
A 15
B 12
C 10
D 5
A certain sum of money consists of 30 coins, some of which are 10 paisa coins and the rest are 5 paisa coins . If the total value of the coins is TK. 2 , what is the number of 10 paisa coins?
A 10
B 15
C 12
D 8
A die is rolled and a coin is tossed What is the probability that a 3 will be rolled and a tail tossed?
A 1/2
B 1/6
C 1/8
D 1/12
Two unbiased coins are tossed. What is probability of getting at most one tail ?
A $$\frac{{1}}{{2}}$$
B $$\frac{{2}}{{3}}$$
C $$\frac{{3}}{{2}}$$
D $$\frac{{3}}{{4}}$$
When two coins are tossed simultaneously, what are the chances of getting at least one tail?
A $$\frac{{4}}{{5}}$$
B $$\frac{{1}}{{5}}$$
C $$\frac{{3}}{{4}}$$
D $$\frac{{1}}{{4}}$$
When tossed, a certain coin has equal probability of landing on either side. If the coin is tossed 3 times, what is the probability that it will land on the same side each time?
A 1/8
B 1/4
C 1/3
D 3/8
A coin is tossed twice. What is the probability of getting head on first toss and tail on second toss?
A 1/2
B 1/3
C 1/4
D 1
A coin is tossed live times. What is the probability that there is at the least one tail?
A $$\frac{{31}}{{32}}$$
B $$\frac{{1}}{{16}}$$
C $$\frac{{1}}{{2}}$$
D $$\frac{{1}}{{32}}$$
When six fair coins are tossed simultaneously, in how many of the outcomes will at most three of the coins turn up as heads?
A 25
B 41
C 22
D 42
E 31

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