On $15$ December $2022$, Jia Yi bought a personal computer at a shopping mall at a price of \(\$

Question

On $15$ December $2022$, Jia Yi bought a personal computer at a shopping mall at a price of $\$1,605$, inclusive of GST (Goods and Services Tax) of $7\%$. Find the price of the personal computer before GST. Find the amount of GST that Jia Yi paid for the personal computer. The shopping mall will offer a discount of $12\%$ on the personal computer during Christmas & New Year's Holiday from $24$ December $2022$ to $3$ January $2023$. And from $1$ January $2023$, the GST in Singapore will be increased by one percentage point from $7\%$. Find the new GST rate from $1$ January $2023$. Find the price of the personal computer (including GST), respectively, if Jia Yi buys it on $26$ December $2022$, $2$ January $2023$, $4$ January $2023$, assuming the price of the personal computer before GST does not change.

Accepted Answer

(i) $1500$ dollars (ii) $105$ dollars (iii) $8\%$ (iv)(a) $1412.40$ dollars (iv)(b) $1425.60$ dollars (iv)(c) $1620$ dollars

Percentages involving Finances: GST

Percentages involving Finances: GST

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