12. Evaluate: √(9.5 * 0.0085 * 18.9) / (0.0017 * 1.9 * 0.021)
A. 1.732
B. 1.414
C. 1
D. 3
Answer:
Option : A
Given exp. = √(9.5 x 0.0085 x 18.9) / (0.0017 x 1.9 x 0.021)
Now, since the sum of decimal places in the numerator and denominator under the radical sign is the same, we remove the decimal.
∴ Given exp = √(95 x 85 x 18900) / (17 x 19 x 21) = √5 x 5 x 900 = 5 x 30 =
