Profit and Loss Practice Test 1

Let CP of 1% goods = Re 1
Then CP of $33\frac{1}{3}\%$ goods $=\mathrm{Rs}33\frac{1}{3}=\frac{100}{3}$
CSP of $33\frac{1}{3}\%$ goods $=\frac{100-20}{100}\times \frac{100}{3}=\frac{80}{3}$
CP of rest of goods $=66\frac{2}{3}$
SP of rest of goods $=\frac{100+12}{100}\times \frac{200}{3}=\mathrm{Rs}\frac{224}{3}$
Total CP of 100% goods = Rs 100
Total SP of 100% goods $=\frac{304}{3}$
Total profit $=\frac{4}{3}$
If profit is Rs $\frac{4}{3}$, then CP = 100
If profit is Rs 520, then CP $=\frac{100\times 3\times 520}{4}$ = Rs 39,000