Question : In an army selection process, the ratio of selected to unselected candidates was $4:1$. If 90 fewer candidates had applied and 20 fewer were selected, the ratio of selected to unselected candidates would have been $5:1$. How many candidates had applied for the process?

Option 1: 1650

Option 2: 3300

Option 3: 825

Option 4: 4950

Question : In an army selection process, the ratio of selected to unselected candidates was 4 : 1. If 60 fewer candidates had applied and 20 fewer were selected, the ratio of selected to unselected candidates would have been 5 : 1. How many candidates had applied for the process?

Option 1: 1250

Option 2: 3300

Option 3: 900

Option 4: 950

Question : In an army selection process, the ratio of selected to unselected was 5:1. If 100 fewer people had applied and 20 fewer had been selected, the ratio of selected to unselected candidates would have been 6 : 1. How many candidates had applied for the process?

Option 1: 5520

Option 2: 2760

Option 3: 1380

Option 4: 8280

Question : The value of $(\frac{1}{20}+\frac{1}{30}+\frac{1}{42}+\frac{1}{56}+\frac{1}{72}+\frac{1}{90})$ is:

Option 1: $\frac{1}{10}$

Option 2: $\frac{3}{5}$

Option 3: $\frac{3}{20}$

Option 4: $\frac{7}{20}$

Question : The ratio of the number of boys and girls in a school of 720 students is 7 : 5. How many more girls should be admitted to make the ratio 1 : 1?

Option 1: 90

Option 2: 120

Option 3: 220

Option 4: 240

Question : Select the option that expresses the given sentence in passive voice.

The Indian army airlifted thousands of people from Ukraine.

Option 1: Thousands of people had been airlifted from Ukraine by the Indian army.

Option 2: Thousands of people have been airlifted from Ukraine by the Indian army.

Option 3: Thousands of people are airlifted from Ukraine by the Indian army.

Option 4: Thousands of people were airlifted from Ukraine by the Indian army.