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a) 10
b) 13
c) 15
d) 18
correct answer is: d) 18
Here, 10 : 12 = 15 : x
\rightarrow\large\frac{10}{12}\normalsize=\large\frac{15}{x}
\rightarrow 10x=\left(15\times12\right) [cross multiply]
\rightarrow x=\large\frac{\left(15\times12\right)}{10}
\rightarrow x=18
\therefore The value of ‘x’ is = 18.
Ans: The value of ‘x’ is 18.
