GMAT Club Official Solution:A publishing company allocated its entire annual operating budget among exactly five expense categories: printing, payroll, promotion, legal compliance, and software systems. Printing accounted for 35% of the budget, payroll for 25%, and promotion for 10%. Legal compliance accounted for x% of the budget, and software systems accounted for y% of the budget. What percent of the budget was allocated to legal compliance?(1) If the company’s legal compliance budget had been 50% higher, the total budget would have increased by 5%.
This statement implies that a 50% increase in the legal compliance budget would correspond to a 5% increase in the total budget. So:
0.5 * x = 0.05 * total budget
x / total budget = 0.10 = 10%
Sufficient.
(2) If the company’s payroll budget had been 80% lower, legal compliance would have accounted for 12.5% of the revised total budget.
Payroll is 25% of the original budget. If it had been 80% lower, then payroll would have become 5% of the original budget.
So the revised total budget would have been:
100% - 20% = 80% of the original budget
The statement says legal compliance would then have accounted for 12.5% of that revised total. So:
x = 12.5% * 80% of the original budget = 10% of the original budget
Thus, legal compliance accounted for 10% of the original budget.
Sufficient.
Answer: D.