Chapter-2.1
1. In a mixture of 30
liters the ratio of water and acid is 7:3.
a)
If the price of 1 liter of mixture is
115 taka then what is the price of 30 liters of mixture.
b)
Find the quantity of acid and water in
that mixture.
c)
What quantity of water is to be mixed
with that mixture so that the ratio of acid and water will be 3:7?
2. A piece of ornament
is made by mixing bronze, zinc and silver. In that piece of ornament, the ratio
of bronze and zinc is 1: 2 and the ratio of Zinc and silver is 3: 5. Find how
many grams of silver are there in an ornament weighing 190 grams.
a)
What is the ratio of the weight of
bronze, zinc and silver in that ornament?
b)
What is the weight of bronze, zinc and
silver in that ornament?
c)
What quantity of zinc is to be mixed
with that mixture so that the ratio of bronze and zinc will be 1:3?
3. Jamal,kamal, and
Tamal are three sisters. Their father divided Taka 7875 amongst them. Thus Lamia
gets 3/5 parts of Fahia and Fahia gets double of Sarika.
a)
What is the ratio of the money of Jamal,
kamal, and Tamal?
b)
Find the amounts of money of Jamal, kamal,
and Tamal.
c)
Jamal, kamal, and Tamal lend their total
money to one of their friend name Sania for 1 year. Kamal gave the amount
of profit is 840 taka. What amount of
profit each of the girl will get?
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