The bag contains 6 tiles: 2 lettered and 4 numbered. The probability of drawing a number without looking is 2/3.
Probability is the ratio of the number of favorable outcomes and a total number of outcomes. it deals with finding out the likelihood of the occurrence of an event.
Given that,
The bag holds 6 tiles.
Among the tiles, 2 are lettered and 4 are numbered.
The task is to choose a tile from the bag without looking.
The bag contains a total of 6 tiles: 2 lettered and 4 numbered.
Therefore,
The probability of drawing a number can be calculated by dividing the number of numbered tiles by the total number of tiles.
Probability of drawing a number = (Number of numbered tiles) / (Total number of tiles)
Probability of drawing a number = 4 / 6
Simplifying this fraction, we get:
Probability of drawing a number = 2 / 3
Hence,
The probability of drawing a number from the bag is 2/3.
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If gold coin weigh 20 grams. If the coin contains gold,copper and tin and in the ratio 4:3:1 then 10gm of gold is present in coin.
A ratio is an ordered pair of numbers a and b, written a / b where b does not equal 0.
Given,
A gold coin weigh 20 grams
the coin contains gold, copper and tin and in the ratio 4:3:1
We need to find the amount of gold in the coin.
Now let us add the ratio.
4x+3x+x=20
8x=20
Divide both sides by 8.
x=2.5
The amount of gold in coin is 4x.
4(2.5)=10 gm
Hence, 10 gm of gold is present in 20 grams of coin.
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we know that
A quick way to estimate the sum of two numbers is to round each number and then add the rounded numbers
case a) We round the number to the nearest hundred
so
Round up is equal to
Round up is equal to
Find the estimate sum
case b) We round the number to the nearest tens
so
Round up is equal to
Round down is equal to
Find the estimate sum