Interview Maths Puzzle Numerical Ability

N individuals were testedfor two infection . If 1/3 rd of the tested had infection A and those with infection A,1/5 th also had infection B how many individual donot have the infection A and B

a: none of these
b: 4N/5
c: N/5
d: 14N/5

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Interview Other Question
The feul indicator in a car shows 1/9 of the tank is full when 25 liters of petrol is added the indicator shows two third of the tank is full what is the capacity of fuel tank

a: 40 litres
b: 36 litres
c: 50 litres
d: 45 litres A 200 meter train crosses another train travelling oppsite in direction 15 sec the length of the train is 300 meter and speed of both the trains are equal find the speed of the train

a: 50 kmph
b: 36 kmph
c: 64 kmph
d: 60 kmph