UPSKILL MATH PLUS

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1. The cost of a book marked at \(Rs. 190\) after paying a sales tax of \(2 \%\) is \(Rs. 192\).
 
2. The buying price of \(5 \ kg\) of flour with the rate \(Rs. 20\) per kg, when \(5 \%\) ST is added on the purchase is \(Rs. 21\).