Question
Which of the following is true about the primary key in
a relational database?Solution
A primary key ensures uniqueness and cannot contain NULL values.
A = (9/4) × B and C = (1/12) × A. If (A + B + C) = 300, then find the value of (12C – B).
- Three numbers are in the ratio 3:5:8. If the difference between the sum of the smallest and the largest number and the sum of the smallest and the second l...
If 1/7 of a number is subtracted from the number, the result is 30 less than the number. Find the number.
Find the unit digit of the expression: 1! + 2! + 3! + 4! + 5! + ........ + 999!.
361 + 362 + 363 + 364 is divisible by which number?
If the difference between two numbers is 52 and they are in the ratio 7 : 3, then find the greater of the two numbers.
- Find the smallest perfect square that is divisible by 10, 14, 18, and 21. What is the remainder when it is divided by 85?
If 'p' is subtracted from 18, 24, 16, and 12, the resulting numbers will be in proportion. Find the value of 'p'.
Find the least number to be added to the largest 3-digit number which leaves remainder 6 when divided by 4, 5, and 7 so that the result becomes a perfec...
