Present average age of 4 friends: ‘A’, ‘B’, ‘C’ and ‘D’ is 33 years. If their ages are in the arithmetic progression in the same order and ‘D’ is 4 years older than ‘B’, then find the sum of present ages of ‘A’ and ‘C’.
Common difference between ages = (4/2) = 2 years. So, let present ages of ‘A’, ‘B’, ‘C’ and ‘D’ be ‘x’, (x + 2) years, (x + 4) years and (x + 6) years, respectively According to question: x + x + 2 + x + 4 + x + 6 = 132 Or, 4x = 120 Or, x = 30 years (Age of A) Present age of ‘C’ = x + 4 = 30 + 4 = 34 years Required sum = 34 + 30 = 64 years
In which of the following expressions will the expression ‘ Q > B ’ be definitely true?
Statement: P ≤ W < O = D ≥ G > T
Conclusions:
I. P ≤ T
II. W < D
Statements: U ≥ P ≥ I ≤ X; Y ≥ P < V; I ≤ W
Conclusions: I. U ≥ W II. Y ≥ I
...In which of the following expressions will the expression ‘S > Y’ and ‘R > Y be definitely true?
Statements: F > T = O > E < P ≤ X > H < M
Conclusion I: F ≥ E
II: X > E
Which of the following would replace @ and & respectively in the following expression such that ‘O > A’ is definitely true?
U = O > W # B ≤...
Which of the following symbols should replace the sign (@) respectively in the given expression in order to make the expression Y ≥ Z and D > K defini...
Statements: J < K = L ≥ M ≥ P; F ≥ K < G
Conclusion I. J < G II.F ≥ P
...Which of the following expressions will be true if the expression Q ≥ M = R > F = E ≤ X is definitely true?
Statements: P ≥ S ≥ C ≤ U; N ≥ S < G ; C ≤ M
Conclusion I. P ≥ N II.M < S
...
