Question

In a garden there are some rows and columns. The number of trees in a row is greater than that in

each column by 10. Find the number of trees in each row if the number of trees are 200.
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Answer 1

Answer:

in one raw there is 20 trees because 10*20 is 200 ok

Answer 2

Answer:

20

Step-by-step explanation:

let number of trees in columns be x

then number of trees in rows = x+10

total number of trees = 200

=> x(x+10) = 200

=> x² + 10x -200 = 0

=> x² +20x -10x -200 =0

=> x(x+20)-10(x+20)= 0

=> (x-10)(x+20)=0

=> x= 10 or -20

but number of trees in columns can't be negative, so number of trees in column = 10

therefore number of trees in each row = x+10 = 10+10 = 20