Question
I. x ² – 10x + 21 = 0 II. y ² – 8y + 15 =
0 In the following question two equations numbered I and II are given. You have to solve both the equations and give answers:Solution
x ² – 10x + 21  = 0 x ² – 7x – 3x + 21 = 0 (x-7) × (x-3) X = 7,3 y² – 8y + 15 = 0 y² –5y – 3y + 15 = 0 (y-5) × (y-3) = 0 Y = 5, 3 Comparing the values of x and y we conclude that the value of y lies between the value of x. S0, relation can’t be determined
Sanjay ate in a restaurant and got a membership discount of 40% on the original bill amount but he has to pay 12% as service tax and 6% service charge o...
Riya could not decide between discount of 30% or two successive discounts of 25% and 5%, both given on shopping of ₹3,840. What is the difference bet...
A reduction of 10% in the price of sugar enables a man to buy 10 kg more for RS 300. Find the reduced price per kg of sugar.
An item with a marked price of ₹4,000 was sold for ₹3,492 after a discount of y% was offered. What was the value of y?
Successive discounts of 20, 25 and 30% is equivalent to a single discount ofÂ
A company sells two products, X and Y. The selling price of product X is ₹500, and the selling price of product Y is ₹800. The company offers a 10%...
The marked price of a pen and pencil is in the ratio of 5:6. The shopkeeper gives a 10% discount on the pen. If the total discount on both the pen and t...
A shopkeeper offers two successive discounts of 10% and 20% on an article. Find the single equivalent discount.
A shopkeeper allows two successive discounts of 20% and 20% on an article marked at Rs 2,000. Find the single equivalent discount.
The marked price of a pen and pencil are in the ratio of 5:6. The shopkeeper gives 20% discount on th pen. If the total discount on both the pen and the...
Relevant for Exams:
