Question
Rs. 15000 invested for 2 years in a scheme offering
compound interest (compounded annually) of 15% p.a. gives an interest that is Rs. 50 less than the interest received on investing Rs. Y for a year at simple interest of 50% p.a.. Find the value of ‘Y’.Solution
Interest returned on investing Rs. 15000 = 15000(1 + 15/100)2 – 15000 = 15000(115/100)2 – 15000 = 15000(23/20)2 – 15000 = 15000{232/202)- 1} = 15000{529/400)- 1} = 15000(529 - 400)/400 = Rs. 4837.5 So, interest returned on investing Rs. Y for 1 year at simple interest of 50% p.a. = 4837.5 + 50 = Rs. 4887.5 Or, Y × (50/100) = 4887.5 Or, Y = 4887.5 × (100/50) Or, Y = 9775
The income of Anand is 30% more than the income of Mayank and the income of Radhika is 70% of the combined income of Anand and Mayank. By what percentag...
The Salary ratio of Prachi to Qureshi is 8:5. Prachi spends 75% of her Salary, while Qureshi spends 40% of his Salary.The difference in their savings am...
The ratio of income of 'P' to that of 'Q' is 3:4. Sum of their expenditures is Rs. 72,000. Savings of 'P' is 25% more than that of 'Q'. Expenditure of '...
Meera spends 30% of her income on house rent and then uses 25% of the remaining money on groceries. From what is left, she deposits 40% in her bank. The...
From Ravi's monthly income, he spends 30% on rent and then 25% of the remaining on household items. After that, he uses 40% of the remaining money on ut...
Nikhil spends x% of his salary on rent, then 30% of the balance on groceries, pays Rs. 6600 for transport, and saves Rs. 5496 from a total income of Rs....
Average income of 'Ishan' and 'John' together is Rs. 60,000. Whereas the average expenditure of 'Ishan' and 'John' is Rs. 38,000....
The average income of three employees, namely Amit, Bisht, and Cherry, is Rs. 24000. Bisht's income is 10% higher than Amit's, and Cherry's income is 50...
What is the difference in the incomes of Pooja and Payal if their savings are Rs. 1000 and Rs. 500, respectively, and their income-to-expenditure ratios...
Income of 'Ravi' is 20% more than that of 'Amit', and the ratio of expenditure of Amit to that of Ravi is 3:4. Amit's income is Rs. 800 more than Ravi's...
