The ten's digit in 1 !+4 !+7 !+10 !+12 !+13 !+15 !+16 !+17 ! is divisible by

Step-by-step solution

gathered 1 !+4 !+7 !=1+24+5040 1 !+4 !+7 !=5065 (10 !+12 !+ +17 !) this value gathered have last 2 digits as zero es So, 10^ 's digit of given question is same as 10^ s digit of (1 !+4 !+7 !) Required 10 's digit is 6=3 ! Hence, option (1) is correct.