Related Questions

Given that, 24 carat gold is pure gold, 18 carat gold is 3/4th of pure gold and 20 carat gold is 5/6th of pure gold, the ratio of the pure gold in 18 carat gold to the pure gold in 20 carat gold is -
A 5 : 8
B 10 : 9
C 8 : 5
D 9 : 10
Molality is defined as the number of gm moles of solute per __________ of solvent.
A litre
B gm
C kg
D m3
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
Specific weight of sea water is more that of pure water because it contains
A dissolved air
B dissolved salt
C suspended matter
D all of the above
The specific weight of sea water is __________ that of pure water.
A Same as
B Less than
C More than
D None of these
A sink contains exactly 12 liters of water. If water is drained from the sink until it holds exactly 6 liters of water less than the quantity of water drained away, how many liters of water were drained away ?
A 2
B 3
C 9
D 6
Fill in the gaps : There is no such thing as chemically pure water ----nature.
A in
B of
C from
D none of these
A milkman purchases the milk at Tk. x per liter and sells it at Tk. 2x per liter still he mixes 2 liters water with every 6 liters of pure milk. what is the profit percentage?
A 116%
B 166/66%
C 60%
D 100%
------- water of this lake is pure.
A a
B an or the
C the
D no article
........ water of this lake is pure.
A a
B an or the
C the
D no article

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