1.

1). 17202). 3003). 4804). 400

Answer»

Given expression is,

84% of 2500 – 420 = 350% of ?

$(\begin{array}{l} \Rightarrow \frac{{84}}{{100}} \times 2500 - 420 = \frac{{350}}{{100}} \times ?\\ \Rightarrow 84 \times 25 - 420 = \frac{{350}}{{100}} \times \;?\\ \Rightarrow 2100 - 420 = \frac{{35}}{{10}} \times \;?\\ \Rightarrow 1680= \frac{{35}}{{10}} \times \;?\\ \Rightarrow {\RM{\;}}? = \frac{{1680\times 10}}{{35}} = 480 \end{array})$

∴ ? = 480



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