`3 1/13+1 4/13 + 2 3/13 =`

3/13+7/13+1/13

3/13-2/13+5/13 =

If A, B, C are three mutually exclusive and exhaustive events of an experiment such that 4P(A) = 3P(B)=2P(C), then P(B) is equal to (i) 1/13 (ii) 2/13 (iii) 3/13 (iv) 4/13

If [(2+x,3,4),(1,-1,2),(x,1,-5)] is a singular matrix then x is (A) 13/25 (B) -25/13 (C) 5/13 (D) 25/13

Find : a. 4 (5)/(13)- 3 (7)/(13) + 2 (8)/(13)

If sin^(-1)(5/x)+sin^(-1)((12)/x)=pi/2, then x is equal to 7/(13) (b) 4/3 (c) 13 (d) (13)/7

If sin^(-1)(5/x)+sin^(-1)((12)/x)=pi/2, then x is equal to 7/(13) (b) 4/3 (c) 13 (d) (13)/7

Two cards are drawn from a well shuffled deck of 52 playing cards with replacement. The probability that both cards are queen is a. 1/(13)xx1/(13) b. 1/(13)+1/(13) c. 1/(13)xx1/(17) d. 1/(13)xx4/5

4/13+9/13+2/13=-/13

If P(A)=(1)/(4), P(B)=(1)/(13) and P(AcapB)=(1)/(52) , then the value of P(overline(A)capoverline(B)) , is A. (3)/(13) B. (5)/(13) C. (7)/(13) D. (9)/(13)