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Q)

# I shipped a package to the US. They charged by Rs. 9.21 for the first Kg and then 51 paise for each additional 500 grams. If I paid Rs. 12.27 as total postage, how much did my package weight?

(A) 4.5 Kgs (B) 3 Kgs (C) 3.5 Kgs (D) 4 Kgs

$\Rightarrow \large\frac{3.06}{0.51}$$= 6$. There are 6 increments of 500 grams, or 6 x 500 = 3 Kgs in the remaining parcel.