GMAT Focus Practice Questions — All Questions

A shop's unit sales were: Product X - Jan 100, Feb 150, Mar 200; Product Y - Jan 80, Feb 120, Mar 160. What were Product X's total unit sales across the three months?

• a.350
• b.400
• c.420
• d.450✓

Add Product X's three monthly figures: 100 + 150 + 200 = 450 units.

Using the same data (Product Y - Jan 80, Feb 120, Mar 160), what was the percent increase in Product Y's sales from January to March?

• a.50%
• b.80%
• c.100%✓
• d.160%

Percent increase = (new - old) / old x 100 = (160 - 80) / 80 x 100 = 80/80 x 100 = 100%. Sales doubled, which is a 100% increase.

Using the same data (X: 100, 150, 200; Y: 80, 120, 160 for Jan, Feb, Mar), in which month was the combined sales of X and Y the highest?

• a.February
• b.March✓
• c.January
• d.They are equal

Combined totals: Jan = 100 + 80 = 180; Feb = 150 + 120 = 270; Mar = 200 + 160 = 360. March is highest at 360 units.

Using the same data (Product Y - Jan 80, Feb 120, Mar 160), what was Product Y's average monthly sales over the three months?

• a.120✓
• b.130
• c.160
• d.100

Average = sum / count = (80 + 120 + 160) / 3 = 360 / 3 = 120 units per month.

Using the February figures (Product X = 150, Product Y = 120), what is the ratio of Product X sales to Product Y sales in February?

• a.4:5
• b.5:4✓
• c.3:2
• d.6:5

The ratio is 150:120. Divide both by their greatest common factor, 30: 150/30 = 5 and 120/30 = 4. The simplified ratio is 5:4.