Question

If in a garden, 540 rose plants and 630 lily plants
are to be planted in columns such that the number
of plants in each column is same. What is the
minimum number of columns in which they are
planted?​

Answer 1

Answer:

Number of rose plant=540

Number of lily plants=630

now, HCF of 540=2×2×5×3×3

HCF of 630=2×5×3×3

common factors=2×5×3×3=90

therefore, the mininum number of column=90