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Byju's Answer
Standard VI
Civics
National Flag
Liza is mixin...
Question
Liza is mixing sand, cement, gravel and colouring in the ratio 4:3:4:1 to make high quality coloured concrete.
How much of each ingredient will she use for 60 Kg of concrete?
How much concrete can she make, using 12 Kg of cement?
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Solution
Let
the
quantity
of
Sand
=
4
x
kg
then
the
quantity
of
cement
=
3
x
kg
quantity
of
gravel
=
4
x
kg
Quantity
of
Colouring
=
x
kg
1
.
Total
quantity
of
concrete
=
60
kg
⇒
4
x
+
3
x
+
4
x
+
x
=
60
⇒
12
x
=
60
⇒
x
=
5
Quantity
of
sand
=
4
×
5
=
20
kg
Quantity
of
cement
=
3
×
5
=
15
kg
Quantity
of
gravel
=
4
×
5
=
20
kg
Quantity
of
colouring
=
x
=
5
kg
2
.
Now
,
the
quantity
of
cement
=
12
kg
⇒
3
x
=
12
⇒
x
=
4
Now
,
total
concrete
manufactured
=
12
x
kg
=
12
×
4
=
48
kg
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