Question
How many different ways can the letters of the word
‘DEMONETIZATION’ be arranged?Solution
D ⇒ 1 E ⇒ 2 M ⇒ 1 O ⇒ 2 N ⇒ 2 T ⇒ 2 I ⇒ 2 Z ⇒ 1 A ⇒ 1 Number of ways = 14!/(2!x2!x2!x2!x2!) = 87178291200/(2x2x2x2x2) = 87178291200/32 = 2724321600
Akshay invested Rs. 2240 in two schemes P and Q in the respective ratio of 9:7. Scheme P and Q are offering simple interest at the rate of 10% per annum...
Aman invested a certain amount of money, splitting it into two equal parts. He placed one part in a simple interest scheme at an annual rate of 10% for ...
A sum of Rs. 15,000 is invested in SIP 'J' which offers 6% p.a. simple interest for 8 years. The interest received from SIP 'J' is invested in SIP 'K' w...
‘P’ invested Rs. 5000 for (y + 3) months, while ‘Q’ invested Rs. 1500 more than ‘P’ for (y - 1) months, in a business. If profit received by...
Rohit deposited Rs. ‘x’ in a bank at 8% compound interest per annum for 3 years, compounded annually. If he earned an interest of Rs. 2,597.12, find...
A man deposited Rs. 12000 at 10% compound interest, compounded annually while Rs. 10500 at 13% simple interest per annum. What will be the difference be...
Rs. 14000 invested for 2 years in a scheme offering compound interest (compounded annually) of 15% p.a. gives an interest that is Rs. 20 less than the i...
A person invested ₹15,000 in two schemes, Scheme A offering 10% per annum simple interest, and Scheme B offering 12% per annum simple interest. If the...
Person 'P' invested ₹4y at a simple interest rate of 35% per annum and ₹3y at a compound interest rate of 20% per annum (compounded annually), both ...
Calculate the compound interest earned by depositing Rs. 8,000 at an annual interest rate of 40%, compounded quarterly, for 9 months.