How many 55% alcohol we need to pour into 14 liters 75% alcohol to get p3% of the alcohol? How many 65% alcohol we get?
Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):
Showing 0 comments:
Be the first to comment!
To solve this example are needed these knowledge from mathematics:
Next similar examples:
- Sea water
Mixing 94 kg of sea water with 82 kg rainwater is created water containing 4.2% salt. How many percent sea water contains salt?
- Percents - easy
How many percent is 432 out of 434?
- Apples 2
James has 13 apples. He has 30 percent more apples than Sam. How many apples has Sam?
Three workers planted 3555 seedlings of tomatoes in one dey. First worked at the standard norm, the second planted 120 seedlings more and the third 135 seedlings more than the first worker. How many seedlings were standard norm?
- Forest nursery
In the forest nursery after winter, they found that 1/10 stems died out of them. For them, they land 193 new spruces. How many spruces are in the forest nursery?
Iron ore contains 57% iron. How much ore is needed to produce 20 tons of iron?
How heavy must prepare bread at a bakery if lose during baking 16% of water and after baking must have 2 kg? (Calculate to the nearest gram)
Pigs are feed by beet.Beet feed containing 12% dry solids, which is 0.72% of digestible crude protein. How much beet must beconsumed in one month (30 days), if the weight of digestible crude protein contained in a daily dose of beet was 0.912 kg?
5 of the same bread has the same weight as three bread and 4 kg of fruit. What weight has one bread?
To the market is introducing a new product, the first week is sold at a reduced price. 8 products is sell at an entry price same as 5 products at the normal price. How much % is reduced price less than the current price for this product?
- Percentage - fractions
About what percentage we must increase number 1/6 to get number 1/3?
- Sales off
Calculate what was the original price of the good, if the price after discount 25% and the subsequent rise of 20% is 400 USD.
- A number
A number increased by 7.9 is 8.3
- Negative in equation
2x + 3 + 7x = – 24, what is the value of x?
Solve the equation: 1/2-2/8 = 1/10; Write the result as a decimal number.
- Unknown number 11
That number increased by three equals three times itself?
- Equation 29
Solve next equation: 2 ( 2x + 3 ) = 8 ( 1 - x) -5 ( x -2 )