Question

which numerical expression represents twenty less than the quotient of eighteen and 13.8?

a) $18 \div 13.8 - 20$

b) $20 - 18 \div 13.8$

c) $20 - 18(13.8)$

d) $18(13.8) - 20$

Explanation:

Step1: Identify quotient of 18 and 13.8

The quotient is $\frac{18}{13.8}$ (or $18 \div 13.8$).

Step2: Subtract 20 from the quotient

"Twenty less than" means subtract 20 from the quotient: $18 \div 13.8 - 20$.

Step3: Match to options

This expression matches option A.

Answer:

A) $18 \div 13.8 - 20$