1. The marked price of a radio is Rs. 2055. If it is sold at 3% discount, find the selling price. Solution: Given, MP = Rs. 2055 Discount percentage = 3 \(\ ⇨ \frac{MP-SP}{MP}×100=3 \) \(…
Continue Reading1. A watch was bought for Rs. 250 and sold it for Rs. 260. Find the profit and profit per cent. Solution: Given, CP = Rs. 250 and SP = Rs. 260 We have, Profit = SP-CP = Rs. 260 - Rs. 250 = Rs. 1…
Continue ReadingIn our daily life, we buy so many things of our importance and we sell so many things also according to need and various circumstances. In such cases, the person who buys an article (product/thing) is called buyer or …
Continue ReadingLet us start with a daily life example where we compare different quantities, suppose the height of two students named Rahim and Karim, and we conclude Rahim is taller than Karim or Kaarim is shorter than Rahim or …
Continue ReadingWhenever we add a number to itself multiple times, we call it addition, but when it is multiplication, then it is called exponentiation and the product is called power of the number. So, a mathematical operation where two num…
Continue ReadingExercise 2.2|Advanced Mathematics|Class 9 1. Express the following sets both in roster and rule form: a) Set of even prime numbers Ans. A = {2} A = {\(x: x\) is the even prime number} b) Set of odd nu…
Continue ReadingAdvanced Mathematics | Class 10 | Exercise 4.3 Solve the following equations: (1) \(~~ 3x-2y=2 \), \(9x^2+4y^2=2 \) Solution: Let, \(3x-2y=2 ⇒ x = \frac{2+2y}{3} \) ...(1) and \(9x…
Continue ReadingAdvanced Mathematics | Class 10 | Exercise 4.2 1. Which number when added to its square will make 156? Solution: Let the number be \(x\) According to question, \(x+x^2=156\) ⇒ \(x^2+x-156=0\) …
Continue ReadingAdvanced Mathematics | Class 10 | Exercise 4.1 1. Form a quadratic equation using the following roots: (i) \(-5, 7\) Solution: Here, the given roots a…
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