Question

6.
Diya covered 8 kilometres when she logged 2 rounds of a rectangular
playground. If the breadth of the playground is 500 metres, what is its
length?
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Answer 1

Step-by-step explanation:

divya: 2 × perimeter of square

= 2 × 4 × length of side

= 2 × 4 × 135

= 1080 metres

Seem: 3 times perimeter of rectangle

= 3 × 2 × (l+b)

= 6 × (115)

= 690m

divya runs more by (1080 - 690) m which is 390 m.

Answer 2

According to the question

2×perimeter=8km

or perimeter=4km

Now

breath=500m

length=X

perimeter=2(l+b)

or 4=2(l+0.5)

or 2=l+0.5

or 1.5=l

So length is 1500m