Question

Answer it fast As possible .i will make brainlist 6,7

Answer 1

answer 6.= 12m
answer 7.=15m

Answer 2

hey 1stly u have to understand the concept of GCD(greatest common divisor).....
it can be find by dividing two no by same no.
GCD means when we asked the common cuts or pieces or etc......
and it is given by greatest no. at this time we confirmly have to use GCD
In the 1st pro.
we have actually asked
the GCD of those no.
so GCD greatest common divisor ....
GCD of those no. is 6
so the answer of this q is 6
and in 2nd q .....
we have also asked the GCD.....
of 15,18,30
so GCD of those no. is 3
so ans of this q is 3
I hope it will help you......☺