Question
A shopkeeper marked an article Rs. 850 above its cost
price and sold it after giving a discount of 30% and earned a profit of 20%. Find the cost price of the articleSolution
Let cost price of the article is Rs. 100x So, 1.2 × 100x = 0.7 × (100x + 850) Or, 112x = 70x + 595 Or, 50x = 595 Or, x = 11.9 Cost price of the article = 100 × 11.9 = Rs. 1190
The chemical bahaviour of an atom depends uponÂ
Urea is a —
Conduction band electrons have more mobility than holes because they
Of the following which one pollutes the air of abig city?Â
Brass is made of
In addition to hydrogen the other abundant element present on Sunsurface is
KMN04 can be used as a/an
A powerful eye irritant present in smog is
The Bhopal tragedy was caused by the gas
The process of covering water pipes made of Iron with Zinc layer to prevent corrosion is called:Â