Question
My grandmother was 9 times older to me 18 years ago. She
would be 3 times of my age 9 years from now. 9 years ago, what was the ratio of my age to that of my grandmother?Solution
Let my age 18 years ago be x years My grandmother’s age at that time = 9 x years My present age = (x + 18) years My grandmother’s present age = (9 x + 18) years According to question 3(x + 18 + 9) = (9 x + 18 + 9) 3 x + 81 = 9 x + 27 9 x - 3 x = 81 – 27 6 x = 54 x = 9 Now, ratio of ages 9 years ago = (x + 18 -9 )/(9x +18 - 9) = (9 + 18 - 9)/(9 × 9 + 18-9 )=18/90 = 1:5
Statements: M = N; A < C < E; N > A
Conclusions:
I. E > N
II. M > C
Statements: U = R < M < Q < P; A > B > E < R < T; I < N = B > U > X
Conclusions:
I. P ≤ U
II. T > A
...In the question, assuming the given statements to be true, find which of the conclusion (s) among given three conclusions is /are definitely true and t...
Statement: A = B ≥ C ≥ D, B < F ≤ K < M
Conclusions:
I. D < F
II. M < A
III. K > D
Statements: R < Y ≤ G = S ≥ T; L ≥ O = S < W ≤ U
Conclusions:
I. R < W
II. T ≤ L
In the question, assuming the given statements to be true, find which of the conclusion (s) among given three conclusions is /are definitely true and t...
Statements : R < O ≤ P < Q; M < L ≤ N > O; S < Q ≤ K
Conclusions:
I. M < K
II. N > R
III. O < S
Which of the symbol should replace the question mark in the given expression in order to make the expression “M ≥ Q” as well as “O > K” defini...
Statements: A > C = B ≥ D ≥ F, B = G ≤ H < E
Conclusions:
I. A > G
II. H ≥ F
III. E > C
Which of the following symbols should be placed in the blank spaces respectively (in the same order from left to right) in order to complete the given e...
