Question
The monthly incomes of P and Q
are in the ratio 3:4. P’s monthly expenditure is 25% less than that of Q. If P and Q save Rs. 9,450 and Rs. 12,600 per month, respectively, what is their average monthly income?Solution
ATQ, Let the monthly expenditure of 'Q' be Rs. ‘x’. So, the monthly expenditure of 'P' = Rs. 0.75x According to question: (x + 12600)/(0.75x + 9450) = 4/3 3x + 37800 = 3x + 37800 0 = 0 Here ‘x’ is eliminated. So, the desired answer can’t be determined
- Diksha invested Rs. x in a scheme that offers compound interest at a rate of 31.25% per annum, compounded annually. The difference between the amount she r...
The amount of a certain sum in 3 years at simple interest at x % p.a. is ₹5,472 and the amount of the same sum in 7(1/2) years at the same rate, at si...
The simple interest earned on a principal of Rs. 6400 at an annual interest rate of (p + 4)% for 3 years is the same as the simple interest earned on a ...
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 invested Rs. ‘x’ in Plan A and Rs. ‘x/2’ in Plan B. Plan A offers 4% p.a. and Plan B offers 7% p.a. simple interest. If after 3 years, the to...
A man invested a certain amount of sum at 12.5% per annum simple interest and earned an interest of Rs.2700 after 4 years. If the same amount is investe...
Rs. 13000 invested for 2 years in a scheme offering compound interest (compounded annually) of 15% p.a. gives an interest that is Rs. 10 less than the i...
If Rs. 15000 is invested at 14% per annum, compounded yearly, calculate the interest earned in one year.
- Calculate the compound interest earned on Rs. 18,000 when it is invested at 10% per annum, compounded semi-annually for 1 year.
A Man deposited certain amount in the Bank at the end of each year. How much amount did he deposited at the end of each year at the rate of 15% simple ...
