Question
What is the sum of ages of F, T and
C? Study the given information carefully and answer the following questions. Twelve persons are sitting in a two parallel row, Row 1 and Row 2. P, Q, R, S, T, and U are sitting in row 1 and facing South direction. A, B, C, D, E, and F are sitting in row 1 and facing North direction. They have different ages viz, 15, 20, 25, 28, 30, 36, 39, 49, 50, 63, 64, and 65. The person whose age is even numbers are not sit adjacent to each other and the person whose age is the odd numbers are not sit adjacent to each other. P is elder than D. E is 63 years old and sits third from the extreme end of the row. U’s age is twice that of B and sits opposite to E. There is two person sits between U and Q who is the youngest person among the group. B sits opposite to the one whose age is 64 years. R’s age is multiple of 5 and S sits immediate left of R. S is not 64 years old. A is 20 years younger than U and sits opposite to R. The age of P and D is p square number below 50. F sits somewhere to the left of B. P sits second to the left of the one who is opposite to F. The number of persons sits right of T is one less than that of the number of persons sits left of the one whose age is 36. The one whose age is 65 sits immediate right of the one whose age is 20 years old. B is not the eldest person. C is elder than D. B is younger than F.Solution
E is 63 years old and sits third from the extreme end of the row. U’s age is twice that of B and sits opposite to E. There are two person sits between U and Q who is the youngest person among the group. B sits opposite to the one whose age is 64 years.
R’s age is multiple of 5 and S sits immediate left of R. S is not 64 years old. From this statement case 2 and Case 4 is eliminated.
F sits somewhere to the left of B. From this statement case 1 is eliminated. A is 20 year younger than U and sits opposite to R. Form that A age is 30years and U age should be 50. P sits second to the left of the one who is opposite to F.
Incase1, F sits somewhere to the left of B, P sits second to the left of the one who is opposite to F, these conditions are not satisfied so rejected.
The number of person sits right of T is one less than that of number of person sits left of the one whose age is 36.T should be sits second from the right end in row 1.So we can fix the position of the one whose age is 36 at immediate right of B. The age of P and D is p square number below 50.So it should be either 25 or 36 or 49. P is elder than D. From the above two statement D should be 36 years old and P should be 49 years old. The one whose age is 65 sits immediate right of the one whose age is 20 years old. B is not the eldest person. From this statement S is 20 years old and R is 65 years old. C elder than D. So C Should be 39 years old B is younger than F. so B should be 25 years old and f should be 28 years old. 
Sara deposited Rs. 18,000 into an investment that offers a compound interest rate of 20% per annum, with semi-annual compounding. Calculate the interest...
Raj invests a certain amount, which grows to Rs. 7,200 at the end of 2 years and further increases to Rs. 8,640 at the end of 3 y...
A property dealer bought a rectangular plot in Noida five years ago at the rate of Rs. 1000 thousand per square meter, the cost of plot increases by 5% ...
Digvijay takes a loan of ₹25,000 at an annual compound interest rate of 10%. He repays ₹4,000 at the end of each year. How much should he pay at the...
The compound interest on a certain sum in 2.5 years at 10% p.a., interest compounded yearly, is 1,623. The sum is:
A sum of money invested at a certain rate of compound interest per annum amounts to ₹86,800 in 2 years and to ₹95,4800 in 3 years. Find the rate of ...
A man invests ₹50,000 in a scheme offering compound interest at 10% per annum, compounded annually. He withdraws ₹25,000 after 2 years. If he lets t...
A sum of money amounts to ₹12,960 in 2 years at compound interest. If the rate of interest is 10% per annum, what is the principal amount?
A sum of money is invested at a rate of 12% per annum compound interest for 2 years. If the total amount after 2 years is ₹11,520, what is the princip...
Raman invested Rs. 70,000 in a bank offering 10% compound interest per annum for 2 years. After 2 years, he used the total amount to start a business wi...