If Mrs. Philips' monthly gross salary is ₦288,000.00 she pays tax of 12½%. calculate her monthly tax.

✅ Correct.

Your calculation for Mrs. Philip's monthly tax is accurate.

Step 1: Calculate 12% of N288,000.00.

$$\text{Monthly tax} = \frac{12}{100} \times 288000$$ $$\text{Monthly tax} = 0.12 \times 288000$$ $$\text{Monthly tax} = 34560$$

Her monthly tax is $\text{N}34,560.00$.