How many 4 digit number can be formed with a digits 1-2-3-4 which are divisible by 4

Question

Toppr Admin · Accepted Answer

No- is divisible by 4 if last two digit is divisible by 4-So- from given two last two digit should be 12 or 24Case -i-No- of 4 digit are -2-xD7-1-xD7-1-xD7-1-2Case -ii-x2234-No- of 4 digit no- -2-x2234- Total 4 digit no-2-2-4-

How many $4$ digit number can be formed with a digits $1, 2, 3, 4$ which are divisible by $4$

No. is divisible by $4$ if last two digit is divisible by $4$ .
So, from given two last two digit should be $12$ or $24$
Case (i)
No. of $4$ digit are $= 2 \times 1 \times 1 \times 1$
$= 2$
Case (ii)
$∴$ No. of $4$ digit no. $= 2$
$∴$ Total $4$ digit no. $= 2 + 2$
$= 4$ .

How many 4 digit number can be formed with a digits 1,2,3,4 which are divisible by 4

No. is divisible by 4 if last two digit is divisible by 4.So, from given two last two digit should be 12 or 24Case (i)No. of 4 digit are =2×1×1×1=2Case (ii)∴No. of 4 digit no. =2∴ Total 4 digit no.=2+2=4.

How many $4$ digit number can be formed with a digits $1, 2, 3, 4$ which are divisible by $4$

No. is divisible by $4$ if last two digit is divisible by $4$ .
So, from given two last two digit should be $12$ or $24$
Case (i)
No. of $4$ digit are $= 2 \times 1 \times 1 \times 1$
$= 2$
Case (ii)
$∴$ No. of $4$ digit no. $= 2$
$∴$ Total $4$ digit no. $= 2 + 2$
$= 4$ .