In a city `20%` of the population travels by car, `50%` by bus and `10%` travels by both car and bus. Then persons travelling by car or bus is-

In a city 20% of the population travels by car, 50% travels by bus and 10% travels by both car and bus. Then persons travelling by car or bus is

In a city 20% of the population travels by car, 50% travels by bus and 10% travels by both car and bus. The persons travelling by car or bus are

In a city 20 percent of the population travels by car, 50 percent travels by bus and 10 percent travels by both car and bus. Then persons travelling by car or bus is

In a city 20 percent of the population travels by car, 50 percent travels by bus and 10 percent travels by both car and bus. Then persons travelling by car or bus is

In a city 20 percent of the population travels by car,50 percent travels by bus and 10 percent travels by both car and bus.Then persons travelling by car or bus is