Question
If the average cost price of 12 identical tables decreases
by Rs. 6 after replacing one table with a new table that costs Rs. 120, what was the original cost price of the replaced table?Solution
ATQ;
Let the cost price of each table be Rs. 'x'.
So, cost price of 12 tables = Rs. 12x
ATQ:
(12x - x + 120) ÷ 12 = x - 6
Or, 11x + 120 = 12x - 72
Or, x = 192
So, the cost price of the table that was removed is Rs. 192.
Simple interest earned on an amount of Rs. 1250 at rate of R% per annum after 4 years is Rs. 250. Find the simple interest earned on an amount of Rs. 13...
What is the maturity value of Rs.25000 at the end of 2 years at 9.25% Simple Interest?
A man deposited Rs. ‘x + 1200’ at 12% per annum simple interest and earned Rs. 528 as interest after 2 years. Find the interest earned by him if he ...
A man invested certain sum at simple interest of r% p.a. such that it amounts to 122% of itself in 5 years. Find the interest earned when Rs. 3000 is in...
A person invested some amount at the rate of 12% simple interest and a certain amount at the rate of 10% simple interest. He received yearly interest of...
A sum of ₹10,000 is invested in two parts: one part at 12% per annum simple interest and the other part at 8% per annum simple interest. After 3 years...
An equal sum of money is invested in two schemes which offer interest at the same rate but one at simple interest and the other at compound interest (co...
A certain sum of money invested at a rate of 24% p.a. amounts to Rs. 19965 at the end of 15 months if the rate of interest is compounded 5 monthly. Find...
What sum of money must be given at simple interest for 8 months at 3% per annum in order to earn Rs. 260 interest?
Bittu, Tittu and Mitthu invested Rs. 80000, Rs. 100000 and Rs. 120000 respectively to start a business. Partnership condition is that, each will get int...
Relevant for Exams:
