Question

Choose the correct alternative for the questions given below :

(i) n(B)=40, n(A∩B)=20, n(A∪B)=35, find n(A)= ?

A]40
B] 20
C] 55
D] 15

(i) p/q form of number 0.16 is....

A] 0.4
B] 0.04
C] 160/999
D] 16/99

(iii) What is n , if √n is not a perfect square number ?

A] Natural number
B] Rational number
C] Irrational number
D] Options A, B, C all are correct
​

Answer 1

(ii) - C and D both

(iii) - Irrational number

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