Ncert solutions

# Question 13

Q13) Consider the statement: Ratio of breadth and length of a hall is 2 : 5. Complete the

following table that shows some possible breadths and lengths of the hall.

SOLUTION:

Given the ratio of breadth and length of a hall = 2:5

also given, breadth of the hall = 10 and length of the hall = 25

then, the ratio of breadth and length \frac{10}{25}=2:5

to find the missing figures

we multiply 25\times2=50

we multiply 20\times2=20 is the first missing figure.

hence the second breadth of hall=20 and length of the hall=50

for finding second missing figure, we have

40=10\times4

so to find the second missing figure we multiply 25\times4=100

hence, third breadth of the hall= 40 & length=100.

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