Question : An office opens at 10 a.m. and closes at 5 p.m. The lunch interval is 30 minutes. The ratio of the lunch interval to the total period of office hours is:

Option 1: 1 : 7

Option 2: 1 : 14

Option 3: 7 : 1

Option 4: 14 : 1

Question : In 6 minutes, $\frac{4}{13}$ of a bucket is filled. How much time will it take to fill the remaining bucket?

Option 1: 13 minutes 30 seconds

Option 2: 14 minutes 30 seconds

Option 3: 11 minutes 30 seconds

Option 4: 12 minutes 30 seconds

Question : The third proportion to 25 and 35 is:

Option 1: 35

Option 2: 49

Option 3: 40

Option 4: 25

Question : The distance between the two towns is covered in 7 hours and 30 minutes, at the speed of 72 km/hr. The time saved if the speed is increased by 25% is:

Option 1: 1 hour 36 minutes

Option 2: 1 hour 50 minutes

Option 3: 1 hour 30 minutes

Option 4: 1 hour 20 minutes

Question : If the circumference of a circle is 220 cm, then what is its radius?

Option 1: 26 cm

Option 2: 25 cm

Option 3: 35 cm

Option 4: 40 cm