Question
According to Mendeleev’s Periodic law, the elements
were arranged in the periodic table in the order of…………...?Solution
The Mendeleev's periodic law is an arrangement of elements in increasing order of their atomic masses as Mendeleev's periodic law states that, the physical and chemical properties of elements are a periodic function of their atomic masses.
A shopkeeper marked an article ‘A’ 60% above the cost price and sold it for Rs. 2016 after giving a certain discount while he sold an articl...
Rajan invested Rs. 18,000 in a scheme offering x% p.a. simple interest for x years. Interest earned by him after ‘x’ years is Rs. 11520. Find the in...
On a sum of Rs 5,000 at 10% per annum for 2 years, what is the difference between compound interest (compounded annually) and simple interest?
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Rs.700 amounts to Rs.742 in 2 years at a certain rate. If interest rate is increased by 2%, then what will be the new interest?
A man invested Rs. 7,000 at simple interest of 'x%' p.a. and received Rs. 14,000 after 2 years. If he had invested Rs. 80,000 at simple interest of 'x%'...
Calculate the compound interest earned on investing Rs. 20,000 at 25% per annum compounded annually for 2 years.
Compound interest on a certain sum of money for 2 years is Rs.2280 while the simple interest on the same sum for the same time period is Rs.2000. Find t...
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