This question was previously asked in

DSSSB PGT English Female General Section - 30 June 2021 Shift 2

Option 2 : 5

**Given:**

The total number of people to rescue is 960

The first helicopter has the capacity of 48 seats

The second helicopter has the capacity of 60 seats

The third helicopter has the capacity of 72 seats

The first helicopter did 5 round

The second helicopter did 6 round

**Concept:**

Total number of people rescued by a helicopter = (The capacity of the helicopter) × (Total number of rounds)

**Calculation:**

⇒ The firs helicapter rescued people = 48 × 5 = 240

⇒ The seconds helicopter rescued people = 60 × 6 = 360

⇒ The total number of people rescued = 240 + 360 = 600

⇒ The remaining people to rescued = 960 - 600 = 360

⇒ The third helicapter will take rounds to rescue remaining people = 360/72 = 5

**∴ The required result will be 5 rounds.**