Question
A man invested certain sum at 9% p.a. simple interest
for his son who was 18 years old. If the amount received by the son when he was 28 years old is Rs. 10400, then find the sum invested by the man.Solution
Let the sum invested by the man be Rs. x Time for which the sum is invested = 28 – 18 = 10 years According to the question, {(x × 9 × 10)/100} + x = 10400 Or, 2.08x = 10400 Or, x = 5000 Therefore, the sum invested by the man = Rs. 5000
Which of the following is used to eliminate redundancy and anomalies in a database?
Which command is used to remove all records from a table without deleting the table structure?
The result of a Cartesian product of two relations R and S will have:
Which OOP principle allows a single interface to represent different underlying forms or data types?
Which of the following is true about a view in SQL?
A primary key in a table:
Which SQL keyword is used to sort the result set?
The concept of "data hiding" is primarily achieved through which OOP principle?
Which of the following is a valid constraint in SQL?
Which of the following statements about abstract classes is true?
Relevant for Exams:
