Mathematical operation and symbol notation


Direction: In the following information question, the symbol S, %, @, © and are used with the following meaning as illustrated below:
'P % Q' means 'P is smallest than Q'.
'P % Q' means 'P is not greater Q'.
'P * Q' means 'P is neither greater than nor equal to Q'.
'P © Q' means 'P is neither smallest than nor equal to Q'.
'P @ Q' means 'P is neither greater than nor smallest than Q'.

  1. Statements:
    F S B, B @ H, H % K
    Conclusions:
    I. B % F II. K @ F II. K S B











  1. View Hint View Answer Discuss in Forum

    F ≤ B ...(i) B = H ...(ii) H ≥ K ... (iii)
    From (i) B F. Hence I follows.
    From (ii) and (iii) B = H ≥ K or B ≥ K or K ≤ B can't be compared. Hence II does not follow.

    Correct Option: D

    F ≤ B ...(i) B = H ...(ii) H ≥ K ... (iii)
    From (i) B F. Hence I follows.
    From (ii) and (iii) B = H ≥ K or B ≥ K or K ≤ B can't be compared. Hence II does not follow.


Direction: In the following information question, the symbol #, %, @, S and © are used with the following meaning as illustrated below:
'P # Q' means 'P is smallest than Q'.
'P % Q' means 'P is not greater Q'.
'P @ Q' means 'P is neither smallest than nor equal to Q'.
'P S Q' means 'P is neither greater than nor equal to Q'.
'P © Q' means 'P is neither smallest than greater nor greater than Q'.
In each of the following questions assuming the given statements to be true, find which of the two conclusions I and II given below them is are definitely true.

  1. Statements:
    M S T, T @ K, K © D
    Conclusions:
    I. D S T II. K S M











  1. View Hint View Answer Discuss in Forum

    M < T ... (i) T > K ...(ii) K = D ...(iii)
    From (ii) and (iii) T > K = D or D < T.
    Hence I follow
    From (i) and (ii) K and M can't be compared
    Hence II does not follow

    Correct Option: A

    M < T ... (i) T > K ...(ii) K = D ...(iii)
    From (ii) and (iii) T > K = D or D < T.
    Hence I follow
    From (i) and (ii) K and M can't be compared
    Hence II does not follow



  1. Statements:
    F # K, K S B, B % M
    Conclusions:
    I. M @ F II. B @ F











  1. View Hint View Answer Discuss in Forum

    F ≥ K ...(i) K > B ....(ii) B ≤ M ...(iii)
    From (i) and (ii) F can't be compared with B and consequently with M. Hence neither II nor I follows.

    Correct Option: D

    F ≥ K ...(i) K > B ....(ii) B ≤ M ...(iii)
    From (i) and (ii) F can't be compared with B and consequently with M. Hence neither II nor I follows.


  1. Statements:
    H @ W, W S M, M # K
    Conclusions:
    I. K S W II. H @ M











  1. View Hint View Answer Discuss in Forum

    H > W ...(i) W > M ..(ii) M ≥ K ....(iii)
    From (ii) and (iii) K and W can't be compared
    Hence I does not follow.
    From (i) and (ii) H and M can't be compared
    Hence II does not follow

    Correct Option: D

    H > W ...(i) W > M ..(ii) M ≥ K ....(iii)
    From (ii) and (iii) K and W can't be compared
    Hence I does not follow.
    From (i) and (ii) H and M can't be compared
    Hence II does not follow



  1. Statements:
    M # W, W % N, N S B
    Conclusions:
    I. N % M II. N © M III. M S B











  1. View Hint View Answer Discuss in Forum

    M ≥ W ...(i) W = N ...(ii) N > B ...(iii)
    Combining these we get M ≥ W = N > B.
    Hence M ≥ N or N ≤ M,
    Which means either I (N = M) or II (N < M) follows.
    Also M > B and II (M ≤ D) Hence III definitely true.

    Correct Option: C

    M ≥ W ...(i) W = N ...(ii) N > B ...(iii)
    Combining these we get M ≥ W = N > B.
    Hence M ≥ N or N ≤ M,
    Which means either I (N = M) or II (N < M) follows.
    Also M > B and II (M ≤ D) Hence III definitely true.