Question1: find the least perfect squared number that is divisible by 12, 16,20 and 24.

Question

Question2: a gardener with 5770 plants to arrange them such that the number of rows of plants equals the number of plants in each row. When he does so,he discovers that the number of plants falls short by 6 .find the number of rows the gardener wants to make.

Answer 1

1.
ok, you can forget worrying about the 12, as 24 is in the problem already (if it is divisible by 24, it is automatically divisble by 12).
consider
16=4x4
20=4x5
24=4x6
you have four fours, but you will need a 5 and 6 to make a perfect square
answer: 4^4 x 5^2 x 6^2=230400

Answer 2

Answer is 75

Answer 3

1=3600

Answer 4

1=3600
2=76