Question

find the last number which on adding 9 to becomes exactly by 15,25,30 and 45
​

Answer 1

Answer:

(D): L.C.M. of 15, 25, 30 and 45 = 450

450 – 9 = 441.

So, if 9 is added to 441, the number is divisible by all the 4 numbers.