Question

express the following as decimals:-(a-) 47
cm 20 mm to m .
(b-) 928 cm to km .
(c-) ₹5 and 327 paise to ₹ .​

Answer 1

i) 47cm 20mm

we know that

1cm = 1/100 m

so 47cm = 47/100m

=> 0.47m

and 1mm = 1/1000 m

so 20mm = 20/1000 m

=> 0.20 m

hence 47cm20mm = (0.47 + 0.020)m

=> 0.49 m

Ii) We know (by definition) that: 1 cm = 1e-05 km.

We can set up a proportion to solve for the number of kilometers.

1 cm / 928 cm = 1e-05 km / x km

Now, we cross multiply to solve for our unknown x:

x km = (928 cm / 1 cm) * 1e-05 km → x km = 0.00928 km

Conclusion:

928 cm = 0.00928 km

III)Convert Paisa into Rupees.

327 paise = 3.27 Rupees.

Step - 2 :-

3.27 + 5.00 = 8.27 Rupees.