Question

The length of a young gram plant is 65 mm. Express its length in cm.

Answer 1

1 cm = 10 mm (Refer the ruler or scale you use)

From this, we can say,
1 mm = 0.1 cm
Hence,
Let 65 mm = 'x' cm
Thus,
x = 0.1 × 65
So, x = 6.5 cm
So, the height of the gram plant is 6.5 cm.

Answer 2

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10 mm =1cm
1 mm =1/10cm
65mm=1/10×65
65mm=13/2
65mm=6.5cm✔✔