Question

the length of A rectangular field is increased by 3m and the breadth decreased then the area increased by 18mpersquare.but if length and breadth both are increased by 60mpersquare.find the length and breadth of the field.
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Answer 1

Answer:

4m and 14m

Step-by-step explanation:

let the length and breadth be a m & b

Area=ab sq m

A/q

(a+3)(b-3)=ab+18

ab-3a+3b-9=ab+18

3b-3a=27

b-a=9

(a+3 )(b+3)=ab+60

ab+3a+3b+9=ab+60

3b+3a=51

b+a=17

a+b+b-a=17+9

2b=26

b=13

b+a=17

13+a=17

a=4

Answer 2

Answer:

4, 13

will be the length and breadth respectively

Step-by-step explanation:

(a+3)(b-3)=-9-3a+3b+ab=ab+18

27=3(b-a)

b-a=9

(a+3)(b+3)=9+3a+3b+ab=ab+60

51=3(a+b)

a+b=17

(a+b)+(b-a)=2b=17+9

b=26/2=13

13 + a =17

a=4