Question 28

If 85 x 5 - 3 = 20 and 18 x 2 - 1 = 10, then 100 x 20 - 5 = ?

Solution

The pattern followed is $$\times$$ is replaced by $$\div$$ and $$-$$ is replaced by $$+$$

Eg :- 85 x 5 - 3 = $$\frac{85}{5}+3=17+3=20$$

and 18 x 2 - 1 = $$\frac{18}{2}+1=9+1=10$$

Similarly, 100 x 20 - 5 = $$\frac{100}{20}+5=5+5=10$$

=> Ans - (C)

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