Question

find the least number which when divided by 12,15,20 leaves remainder 9 in each case.
a)60
b)69
c)51
d)600​

Answer 1

Answer:

LCM of 12, 15, 20, 54

12 = 2 x 2 x 3

15 = 3 x 5

20 = 2 x 2 x 5

54 = 2 x 3 x 3 x 3

LCM = 27 x 4 x 5 = 27 x 20

= 540

ADD 8

= 540 + 8 = 548

Therefore, the answer is 548 that is 'B'

Step-by-step explanation: