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)?
ক 40
খ 50
গ 70
ঘ 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?
ক 15
খ 12
গ 10
ঘ 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?
ক 10
খ 15
গ 12
ঘ 8
Two unbiased coins are tossed. What is probability of getting at most one tail ?
ক $$\frac{{1}}{{2}}$$
খ $$\frac{{2}}{{3}}$$
গ $$\frac{{3}}{{2}}$$
ঘ $$\frac{{3}}{{4}}$$
Three unbiased coins are tossed. What is the probability of getting at most two heads?
ক 3\/4
খ 7\/8
গ 1\/2
ঘ 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?
ক 1/8
খ 1/4
গ 1/3
ঘ 3/8
Two unbiased coin are tossed .What is the probability of getting at most one head?
ক $$\frac{{1}}{{4}}$$
খ 2
গ $$\frac{{3}}{{4}}$$
ঘ 1
Three coins are tossed. Find the probability of at least one head and one tail.
ক 1/2
খ 1/4
গ 3/4
ঘ 2/3
When six fair coins are tossed simultaneously, in how many of the outcomes will at most three of the coins turn up as heads?
ক 25
খ 41
গ 22
ঘ 42
ঙ 31
When two coins are tossed simultaneously, what are the chances of getting at least one tail?
ক $$\frac{{4}}{{5}}$$
খ $$\frac{{1}}{{5}}$$
গ $$\frac{{3}}{{4}}$$
ঘ $$\frac{{1}}{{4}}$$

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