Question
Select the letter-cluster from among the given option
that can replace the question mark (?) in the following series. ?, K – 4, L – 6, M – 8, N – 10Solution
J – 2 = J - (2 × 1) K – 4 = K - (2 × 2) L – 6 = L - (2 × 3) M – 8 = M - (2 × 4) N – 10 = N - (2 × 5)
If + means ÷, × means +, ÷ means – and – means ×, then find the value of 48 × 35 – 5 + 7 ÷ 7 – 9
...What will come in place of the question mark (?) in the following equation, if '÷' and '+' are interchanged and 'x' and '-' are interchanged?
If P denotes ‘multiplied by’, T denotes ‘subtracted from’, M denotes ‘added to’ and B denotes ‘divided by’, then 50 B 5 P 16 T 15 M 13 ...
If '+' means '-', ' X ' means '+', '-' means '÷' and '÷' means ' X ', then what is the value of the following expression?
912 - 8 + 211 X 14 ÷...
51.884 ×  12.91 × 16.502 =?
What will come in place of the question mark (?) in the following equation, if '+' and '−' are interchanged and also '×' and '÷' are interchanged?...
  By Interchanging the given two numbers which of the following equation will be correct?
1 and 6
I.             7 – 5 ...
If '@' means ( X ), '$' means (-), '#' means (÷), and '%' means (+), then what is the value of the expression: [{(84 $ 20) # (14 % 18)} @ 12]
If '+' means '÷', '-' means ' X ', ' X ' means '+', '÷' means '-', what will come in place of the question mark(?)?
34 X 272 + 34 - 8 ÷ 25 = ?...
 If $ means +, # means - , @ means x and * means ÷, then what is the value of 22 $ 3 @ 10 # 21 * 7 =?