Question

Find the least number which when divided by 18 21 24 and 30 leaves a remainder 9 in each case

Answer 1

I know it's a number it could be any number

Answer 2

Answer:

2529

Step-by-step explanation:

first of all find LCM of 18 21 24 30

18 = 2×3×3

24=2×2×2×3

21=3×7

30=2×3×5

LCM=2×2×3×3×5×7=2520

NOW Add 9 in LCM which is 2520+9=2529

Now

2529÷18=leaving remainder 9 and quotient 13

2529÷21=leaving remainder 9 and quotient 12

2529÷24=leaving remainder 9 and quotient 105

2529÷30=leaving remainder 9 and quotient 84