Question

which one of the following digits should be used along with digits 3 , 6 , 4 to form a 4 - digit number lying between 5,890 and 6,231 a 2 b 5 c 7 d 1​

Answer 1

Answer:

it's 7 because it was an xes number mmmmm....

Answer 2

Given,

Digits 3, 6, 4.

To find,

Which digit from the numbers 2, 5, 7, 1 can be used along with given digits to form a 4-digit number lying between 5890 and 6231.

Solution,

We can solve this problem simply by using the process given below.

Firstly, as we can see that three digits are given, that is 3, 6, and 4. It means we need one more digit to form a 4-digit number.

Also, we have to form a number that needs to be greater than 5890 but less than 6231. Also, this requires that the digit at the thousandth place must be either 5 or 6.

Now, considering 2 from the given options, we see that a number less than 6231 could not be formed. As 6 needs to be at the thousandth place. The smallest number we could obtain is 6234.

Now, considering 5 from the options, again the largest number formed will be either 5643 or 6543. Both do not lie between the given numbers.

Again, considering 7, and keeping 6 at the thousandth place we get the smallest number 6347, which doesn't lie between the given numbers.

Now, only 1 is remaining from options.

Keeping 6 at the thousandth place and using 1, we get 6134. It is the only number lying between 5890 and 6231.

So, 1 will be the right digit which should be used along with 3, 6, and 4 to form a 4-digit number lying between 5890 and 6231.