Question
The average ages of A, B and C is 20% more than the
average ages of A and B. 10years hence from now, the ratio of the ages of A and C will be 3:5, respectively and age of B will be the mean of their ages at the time. Find the sum of present ages of B and C.Solution
Let the age of A and C 10 years from now we 3X years and 5X year respectively. So age of B 10 years from now = (3X+5X)/2 = 4x years. As per question (3x-10+4x-10+5x-10)/3 = 1.2*(3x-10+4x-10)/2 24x-60 = 3.6*(7x-20) 24x-60 = 25.2x-72 1.2x=12 X=10 Sum of present age of B and C = (4*10-10) +(5*10-10) = 70 years.
Answer the questions based on the information given below.
A ÷ B means ‘A is the mother of B’
A × B means A is the husband of B
Answer the following question based on the direction given below.
If 'A#B' means 'A is father of B'
'A@B' means 'A is brother of B' ...
'A % B' means 'A is the father of B'.
'A @ B' means 'A is the spouse of B'.
'A $ B' means 'A is the mother-in-law of B'.
'A & B' me...
A + B means ‘A is the father of B’
A – B means ‘A is the mother of B’
A % B means ‘A is the brother of B’
A # B m...
A + B means ‘A is the mother of B’; A – B means ‘A is the husband of B’; A × B means ‘A is the son of B’; A ÷ B means ‘A is the daught...
If U&V$Y@W%Z is true then how is U related to Z?
If J & I @ H + G is true then, how is G related to J?
If the expression ‘S&R @ Q * P, S % T * U and V # U’ are true, then how is V’s only niece related to the person married to P?
'A@B' means 'A is the father of B'. 'A#B' means 'A is the sister of B'. 'A$B' means 'A is the brother of B'. 'A%B' means 'A is the wife of B'.
If...
If the expression ‘U & Z # Y * W & V’ is true, then how is Z’s son related to father in law of only sister in law of Y?
