Question
Article βPβ, if sold at a profit of 25% earns a
profit of Rs. 450. If article βPβ is marked 50% above its cost price and then sold after offering two successive discounts of 10% and Rs. x, respectively then what would be the value of βxβ such that there is neither profit nor loss in the transaction?Solution
Let the cost price of article βPβ = Rs. 100y Then, according to the question, 25y = 450 Or, y = (450/25) = 18 So, cost price of article = Rs. 1800 Marked price of the article = 1800 Γ 1.5 = 2700 Price after 1st discount of 10% = 2700 Γ 0.9 = 2430 So, further discount be given = 2430 β 1800 = Rs. 630 Or, x = 630
Magnesium has atomic number as 12. Find out its valiancy.
Which of the following is correct regarding isobars?
I. They have different atomic numbers
II. The have same mass numbers
Which base is present in soap?
Which of the following relation is correct?
Which of the following pair of element β atomicity is correct?
I. Helium β monoatomic
II. Oxygen β triatomic
Which acid is found in vinegar?
Which of the follwoing gas is commonly known as "Laughing Gas" ?
Which dating method is commonly used to determine the age of materials from prehistoric times?
The device which transfer the signal from low resistance region to high resistance region is β
Which type of wave does not require a medium for propagation?