Correct Answer - Option 1 : 666
Formula / Concept used
LCM of the above mentioned numbers would give us the least number which will be divisible by all of them
Calculation
Adding 6 will leave 6 as remainder in each case.
⇒ 12 = 3 × 2 × 2
⇒ 15 = 3 × 5
⇒ 20 = 4 × 5
⇒ 44 = 11 × 4
⇒ LCM of 12,15, 20 and 44 = 660
⇒ Required number = 660 + 6 = 666
∴ Required number = 666
