GATE General Aptitude Practice Questions — All Questions

If the ratio of boys to girls is 3:2 and there are 30 students, the number of boys is:

• a.12
• b.18✓
• c.15
• d.20

Boys = 30 x 3/5 = 18.

A shopkeeper gives a 10% discount on a 500 item. The price paid is:

• a.450✓
• b.480
• c.400
• d.490

500 x 0.9 = 450.

The value of 0.2 x 0.3 is:

• a.0.6
• b.0.5
• c.0.06✓
• d.0.006

0.2 x 0.3 = 0.06.

If 5 machines make 5 items in 5 minutes, how long do 100 machines take to make 100 items?

• a.100 minutes
• b.20 minutes
• c.1 minute
• d.5 minutes✓

Each machine makes 1 item in 5 minutes; 100 machines make 100 items in 5 minutes.

The next term: 1, 4, 9, 16, 25, ?

• a.36✓
• b.30
• c.49
• d.40

Perfect squares; 6^2 = 36.

A car's speed increases from 40 to 60 km/h. The percentage increase is:

• a.20%
• b.50%✓
• c.40%
• d.33%

(60-40)/40 = 50%.