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Rust is an iron oxide formed by the redox reaction of iron and oxygen in the presence of water or air moisture 4Fe+2O₂ +x H₂ O → 2Fe₂ O₃ - x H₃ O Hence rust is a compound.
A product is marked at ₹1,200. If a discount of 20% is offered, and then a tax of 10% is applied on the discounted price, what is the final price paid...
Arun's average score across six subjects, including English and Mathematics, is recorded as 55. However, there was an error in reporting his marks for E...
A shopkeeper marks his goods 50% above the cost price but allows his customers a discount of 20% on the marked price. What is his actual profit if selli...
6 mangoes are bought for Rs 24 and 3 mangoes are sold for Rs 18. Find the percentage profit or loss.
In triangle ABC, DE is parallel to BC. If AD = 3, DB = 2, and DE = 5, what is the length of BC?
The current ages of Shivani and Shilpa are in the ratio 7:5. Shipra's present age is 20% more than what Shilpa's age was five years ago. If the average ...
The monthly incomes of A and B are in the ratio of 5:6. A's monthly savings are 50% higher than B's monthly savings, while A's monthly expenditure equal...
A cone has a base radius of 6 cm and a height of 8 cm. Find its volume and slant height (use π = 3.14).
Amit is twice as efficient as Bishnu, who takes 12 more days than Chintu to complete the same work. If Amit and Chintu together c...
The Least Common Multiple (LCM) of two prime numbers, 'a' and 'b', is given as 221, where 'a' is smaller than 'b'. Determine the value of 'b'.