Question
A retailer bought a luxury pen after getting a discount
of 30% on the marked price. He sold the luxury pen to a customer for Rs 4536 and earned a profit of 20% on his cost price. What was the initial marked price of the luxury pen?Solution
Selling price of luxury pen = Rs 4536 CP of luxury pen= 4536 x 100/120 = Rs 3780 MP of luxury pen= 3780 x 100/70 = Rs 5400
Find the common factor of (x2Â - 4x - 12) and (x2Â - 14x - 32).
If (5x + 2)3 + (x – 1)3 + 8(3x – 7)3 = 6(5x + 2) × (x – 1) × (3x – 7), then the value of (5x + 3) isÂ
...What is the average of the first 20 multiples of 12?
A certain number of students from school X appeared in an examination and 30% students failed. 150% more students than those from school X, appeared in ...

48 24 24 48 ? 1536
...What is the highest common factor of (x³ - x² - x - 15) and (x³ - 3x² - 3x + 9)?
If
= 2 then find Find the remainder on dividing (5x 3  + 4x 2  – 10x + 1) by (2x – 4).