Question

the higth of my black board is 25m express it into cm and mm​

Answer 1

Answer:Let breadth = x cm. Then, length = (x + 8) cm.

∴ (x + 8) x = (x + 15) (x - 4)

<=> x2 + 8x = x2 + 11x - 60 <=> x = 20.

So, length = 28 cm and breadth = 20 cm.

Answer 2

Explanation:

2500 cm

25000 mm

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