Question
The average cost price of 15 pens (having equal cost
price) decreased by Rs.3, when one of the pen is replaced by a new pen having cost price of Rs.50. Find the cost price of the pen that was replaced.Solution
Let the cost price of each pen be Rs.x So, cost price of 15 pens = Rs.15x According to the question, => (15x – x + 50)/15 = x – 3 => 14x + 50 = 15x – 45 => x = 95 Therefore, the cost price of the pen that was replaced is = Rs.95
A group of 6 men and 5 women can finish a certain task in 8 days, while another group of 3 men and 15 women can complete the same task in 6 days. Now, 4...
If the total market size is ₹37,500 million, what is the market share value of Company B?
What does the "Word Count" feature in a word processing software typically provide?
A can complete a work in 12 days, while B can complete it in 15 days. How many days will they take to finish the work together?
The total income of 'X', 'Y', and 'Z' is Rs. 21000. They spend 85%, 80%, and 75% of their incomes, and the ratio of their savings is 4:5:6. Calculate th...
If detA = 3, detB = 2, then det(AB) =?A train travels at 72 km/h and crosses a platform of length 150 meters in 30 seconds. Find the length of the train.
A container has a mixture of two liquids, A and B, in the ratio of 5:3. If 16 liters of the mixture are removed and replaced with 16 liters of liquid B,...
The average height of a basketball team consisting of 18 players is 185 cm. If the height of the coach and the assistant coach is...
In a class, 40 like coffee, 50 like tea, 20 like both. Find number of students who like neither if total is 100.
