Question

Find a number when divided by 7,9,11 leave the remainder 1,2,3

Answer 1

Let n/7=1,n/9=2,n/11=3

Now multiply 2n in each,

2n/7=1,2n/9=2,2n/11=3

Than add 5 in each

(2n+5)/7=0 remainder,(2n+5)/9=0 remainder,(2n+5)/11=0 remainder

so LCM of (7,9,11)-5

2n=693-5=688

2n=688

n=688/2

n=344

That's solve