Question

X is a whole number which when divided by 5 gives 4 as remainder. What will be the remainder when 2x is
divided by 52
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Prag question
O a. 0
O b.2.
OC 1
O d. 3​

Answer 1

Answer:

2 option b is correct

Step-by-step explanation:

Let n=4q+3. Then 2n=8q+6 =4(2q+1)+2.

Thus, when 2n is divided by 4, the remainder is 2.

Answer 2

The remainder would be 6.

Step-by-step explanation:

The pieces of information provided are:

• X is a whole number.
• X when divided by 5 gives the remainder 4. Thus, the digit at units place would be 4 or 9.

For example, if the number is 44, and we divide it by 5, we get the remainder as 4.

• If the number is multiplied two times, that means the unit's place would get doubled. So, digits present at the unit's place in 2X would be 8 only.

Then the remainder would be either 6, 16, 26, 36, or 46 when 2X would be divided by 52.

For example:

1. If the number is 58, the remainder would be 6.
2. If the number is 68, the remainder would be 16.
3. If the number is 78, the remainder would be 26, and so on.