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2.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.

Answer :

Let the number to be filled in the blanks be a, b, c and d respectively.
Therefore, \(\frac{1}8=\frac{4}a\)

\(\Rightarrow a=32\)


\(\Rightarrow b=56\)


\(\Rightarrow c=96\)


\(\Rightarrow d=160\)

Hence, we have the required value of bases as: