Question

Mukul is a social worker. In his village there was no school building. Mukul donated a rectangular
plot of land for school building ,the dimension of the plot are in the ratio 10:3,he also donated
Rs.15,600 to fence the plot at Rs. 50 per m

Q13. What are the dimension of the plot?
        I.   120,36 m II.   102,30 m  III.   102,31 m IV.   None of these
Q14.what will be the area of the plot?
I.   4300 m 2 II.   4320 m 2  III.   4200 m 2 IV.   None of these
Q15.what will be the perimeter if the cost of fencing changed to Rs.30 per m
I.   320 m II.   520 m  III.   530 m IV.   None of these
Q16.what will be the new dimensions then?
I.   150,20 m II.   100,30 m  III.   200,60 m IV.   None of these


Plz answer Q 15&16

Answer 1

Step-by-step explanation:

Let length l of plot 

breadth =103l

Perimeter (fence)=2(i+103l)=1026lm

Cost for fencing =1026l×50=15600

⇒ l=120m

⇒ b=103×120=36m

Area=lb=4320m2

Sandeep seems a very kind person thinking about the welfare of his village.