Question

Use log table to find log 86.76

• A. 0.9383
• B. 1.9383
• C. 0.0003
• D. 0.8633

Answer 1

The correct option is B 1.9383

$86.76=8.676\times {10}^1$ (scientific notation)

$\therefore$ The characteristic is 1. To find mantissa consider the number 8.676.

From the table, log 8.67 is 0.9380

Mean difference of 6 is 0.0003

log 8.676 = 0.9380 + 0.0003 = 0.9383

$\therefore$ log 86.76 = 1.9383