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1
P and Q are two positive integers such that PQ = 64. Which of the following cannot be the value of P + Q?
2
If X and Y are integers and we subtract them we get even. Which case will be even always?
3
Which one of the following is not a leap year?
4
Find the least number divisible by 2,3,5,6 and 15 which is a perfect square.
5
If a number 'N' leaves a remainder 3 when divided by 7, what will be the remainder when '7N' is divided by 7?
6
The product of two numbers is 10 more than 5 times the sum times the sum. Find the numbers if the numbers are in a ratio of 5:6.
7
{ 720 ÷ 12 + 18 × 4 } ÷ 6 + 25% of 160 = ?
8
If a number 45678x9231 is divisible by 3, then how many values are possible for x?
9
If x=210 x 56 then how many zeros will be there at the end of x?
10
Consider the following statements regarding 1's and 2's complement representation:
The 1's complement of a binary number is obtained by simply inverting all its bits, changing every 0 to a 1 and every 1 to a 0.
The 2's complement of a binary number is calculated mathematically by adding 1 to its 1's complement.
In an 8-bit 2's complement system, the binary sequence 1111 1111 represents the decimal number -128.
Which of the statements given above is/are correct?