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Quantities and Units - Engineering

Q1:

When these numbers are multiplied, (6 × 103) (5 × 105), the result is

A 3 × 108

B 30 × 108

C 300 × 109

D 3,000 × 107

ANS:B - 30 × 108

= (6×1000)(5×10000),
= (6000)(50000),
= 300000000,
= 30×10'8.