Q . 16] Answer any one question in that .
Class 9 Maths
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2x +3y=23
2(7)+3(3)=23 , 2×7+3×3 =23, 14+9=23,
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Answer:
Q.16.
let the breadth be x.
Given: length = (3/4) of breadth
= (3/4)x = 3x/4
area of the rectangular field = 25/3 sq. units
using, area of rectangle = l×b
25/3 = 3x/4 × x
100 = 9x^2 (cross mulplication)
100/9 = x^2
x = √100/9 = 10/3
putting, value of x in (3/4)x
Therefore, length of the field is (3/4)(10/3) = 300/12 = 25m
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