Question

rare (3.1) Find the value of a & D
The sum of the numerator and denominator of a fraction greater by 1 than thnice the numerator
If the numerator is decreased by 1, then the fraction reduce to 5. Find the fraction
3) A box contains 90 cards bearing a number from 1 to 90. Find the probability that the​

Answer 1

Answer:

let x be the numerator and y be the denominator.

from given question,

x+y = 3x+1,. (EQ.1)

if the numerator is decreased by 1

then,

x-1=5

x=6

(EQ.1) implies

6 + y =18+1

y=19-6

y=13

therefore the fraction is x/y = 6/13