To paint a picture, 2 parts of colour pigment is to be mixed with 7 parts of base and then painting is done. If 35 ml of red pigment and 45 ml of blue pigment are used, then how much base you need to mix?

120 ml

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210 ml

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180 ml

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280 ml

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Solution

The correct option is D
280 ml

35 ml of red pigment and 45 ml of blue pigment add to 80 ml.

As the color pigment and base are in direct proportion i.e., in the ratio 2:7 , let the amount of base required be ‘x’ ml.

Now , $\frac{2}{7}$ = $\frac{80}{x}$

Which gives x = 280

So, 280 ml of base is required.

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Similar questions

Q. 2A mixture of paint is prepared by mixing

1

part of red pigments with

8

parts of base. In the following table, find the parts of base that need to be added

Parts of red pigment	$1$	$4$	$7$	$12$	$20$
Parts of base	$8$	$\dots$	$\dots$	$\dots$	$\dots$

1

part of a red pigment requires

75

mL of base, how much red pigment should we mix with

1800

mL of base?

A mixture of paint is prepared by mixing 1 part of red pigment with 8 parts of base. In the following table, find the parts of base that need to be added.
If 1 part of a red pigment requires 75 mL of base, how much red pigment should we mix with 1800 mL of base?

$\begin{matrix} P a r t s o f r e d p i g m e n t & 1 & 4 & 7 & 12 & 20 P a r t s o f b a s e & 8 \end{matrix}$ [3 MARKS]

Q. A mixture of paint is prepared by mixing

1

part of red pigments with

8

parts of base. In the following table, find the parts of base that need to be added

Parts of red pigment	$1$	$4$	$7$	$12$	$20$
Parts of base	$8$	$\dots$	$\dots$	$\dots$	$\dots$

Question 02.
A mixture of paint is prepared by mixing 1 part of red pigments with 8 parts of base. In the following table, find the parts of base that need to be added.
$\begin{matrix} P a r t s o f r e d p i g m e n t & 1 & 4 & 7 & 12 & 20 P a r t s o f b a s e & 8 & \dots & \dots & \dots & \dots \end{matrix}$

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To paint a picture, 2 parts of colour pigment is to be mixed with 7 parts of base and then painting is done. If 35 ml of red pigment and 45 ml of blue pigment are used, then how much base you need to mix?

The correct option is D 280 ml 35 ml of red pigment and 45 ml of blue pigment add to 80 ml. As the color pigment and base are in direct proportion i.e., in the ratio 2:7 , let the amount of base required be ‘x’ ml. Now , 27 = 80x Which gives x = 280 So, 280 ml of base is required.