Profit earned by an organisation is distributed among officers and clerks in the ratio of 5 : 3. If the number of officers is 55 and the number of clerks is 70 and the amount received by each officer is Rs12,000, what was the total amount of profit earned?
Answer: C
The total amount distributed among 55 officers \(= Rs. 55 \times 1200 = Rs. 6,60,000.\)
Their ratio \(5:3\)
Total profit \(= 6,60,000 + 396000 = Rs 10,56,000.\)
Enter details here
Sam purchased \(20 dozens\) of toys at the rate of \(Rs. 375\) per dozen. He sold each one of them at the rate of \(Rs. 33.\) What was his percentage profit?
Answer: C
Cost Price of \(1\) toy \(= Rs. (\frac{375}{12}) = Rs. 31.25\)
Selling Price of \(1\) toy \(= Rs. 33\)
So. Gain \(= Rs. (33 - 31.25) = Rs. 1.75\)
\(\therefore\) Profit % \(= (\frac{1.75}{31.25} \times 100)\) % \(= \frac{28}{5}\) % \(= 5.6\) %
Enter details here
If selling price is doubled, the profit triples. Find the profit percent.
Answer: B
Cost price be \(Rs. x\) and Selling price be \(Rs. y.\)
Then, \(3(y - x) = (2y - x) \)
\(\Rightarrow y = 2x\)
Profit \(= Rs. (y - x) = Rs. (2x - x) = Rs. x.\)
\(\therefore\) Profit % \(= (\frac{x}{x} \times 100)\) % \(= 100\) %
Enter details here
\(Two \) Mangoes, \(three \) grapes and \(four \) apples cost \(Rs. 15.\) \(Three\) Mangoes, \(two\) grapes and \(one\) apple cost \(Rs. 10.\) I bought \(3\) Mangoes, \(3\) grapes and \(3\) apples. How much did I pay?
Answer: B
Mango \(= X;\) Grape \(= Y;\) Apple \(= Z;\)
\(2X + 3Y + 4Z= 15 - 1\)
\(3X + 2Y + Z = 10 - 2\)
Adding (1) and (2) \(5X + 5Y + 5Z = 25\)
Clearly, \(X + Y + Z = 5\)
So cost of \(3\) Mangoes, \(3\) Grapes and \(3\) Apples will be \(3X + 3Y + 3Z \) \(i.e, 15\)
Enter details here