Mr. khanna has, 1200 plants. He wants to plants these in such a way that the number of rows and the number of columns remains the same a) What is the minimum number of plants he needs more for his purpose b) Which value is depicted by Mr. Khanna
Answers
In these types questions we find out LCM
So finding it's LCM
We see 1200=2×2×2×2×5×5×3
We see all numbers are in their pairs instead of 3 so we pair it.
In it's pairing we take 3 so ur answer is 3
Hope it will help you
a)25. b)44
the number of rows and the number of Columns is same.
let the no of row be x
then the no. for coloum be x
total no. plant= no.of row× no. of coloum
1200= x×x
1200= x²
here 1200 is not a perfect square so we must to add subtract divide or multiply it by a no. to make it perfect square.
in this question it is given to add plants so,
1200+25=x²
1025=x²
35=x
adding 25 make1200 perfect square so gardener
needs 25 more plants
..........666......
(b) if we have to depicted(subtract, reduce) no. of plants then,
1200-44=x²
1156=x²
34=x
subtracting 44 make 1200 a perfect square so gardener depicted 44 plants
