well if you do 20 divided by 10, you'll get your answer which is 0.2. Simple. Trust me I'm a maths teacher in cambridge university! Yeah, I know
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Never realised Cambridge had fallen on such hard times! 20/10 = 0.2! The least the person could have done is check the answer using a calculator if their mental maths was not up to scratch!
Anyway, 20 can be written as 20.0 as a decimal, although that does imply a greater degree of precision.
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20.5
Here we go....... 1 Bigha = 20 katha = 33 decimal 1 katha = 1.65 decimal
Expressed as a surd, sqrt(372000) = 20 sqrt(930). Expressed as a decimal, rounded to five decimal places, this is equal to 609.91803.
3.14159265358979323846
To write 3.45 as a reduced mixed number, first separate the whole number part (3) from the decimal part (.45). Next, convert the decimal part to a fraction by placing the decimal value (45) over the place value of the decimal (100), which gives you 45/100. Simplify this fraction by dividing both the numerator and denominator by the greatest common factor, which is 5 in this case. This gives you 9/20. Therefore, 3.45 as a reduced mixed number is 3 9/20.