Which of the following expressions can be used to multiply a given number ‘a’ by 4?

Home / Engineering / Problem Solving and Python Programming / Question

Mr. Dubey • 51.43K Points
Coach

Q.) Which of the following expressions can be used to multiply a given number ‘a’ by 4?

(A) a<<2

(B) a<<4

(D) a>>4

Correct answer : Option (B) - a<<4

Explanation:

 let us consider an example wherein a=2. the binary form of 2 is 0010. when we left shift this value by 2, we get 1000, the value of which is 8. hence if we want to multiply a given number ‘a’ by 4, we can use the expression: a<<2.

Discusssion

Related MCQs on Problem Solving and Python Programming

Q. The is a touring problem in which each city must be visited exactly once. The aim is to find the shortest tour.

Q. Redo operations are performed exclusively using

Q. Let A and B is the input of a subtractor then the borrow will be

Q. A system is in a safe state only if there exists a

Q. Which layer of the OSI reference model does PPTP work at?

Q. In Circular Linked List insertion of a node involves the modification of ____ links.

Q. What separates the physical aspects of data storage from the logical aspects of data representation?

Q. Which of the following is a disadvantage of OOD?

Q. The full form of CTDL is

Q. Which is an example of a web document?