In the following question, correct the equation by interchanging two signs.

4 – 10 x 5 + 9 ÷ 3 = 51

• x and –

• ÷ and x

• + and –

• – and ÷

If 12 (20) 16 and 21 (35) 28, then what is value of A in 48 (80) A ?

• 50

• 56

• 64

• 72

If 'K' denotes 'multiplied by', 'M' denotes 'subtracted from', 'J' denotes 'added to' and 'L' denotes 'divided by', then

44 M 24 K 56 L 14 J 60 = ?

• 16

• 72

• 8

• 140

If 27 (15) 33 and 41 (13) 53, then what is the value of 'A' in 26 (A) 35?

• 16

• 13

• 14

• 11

In the following question, select the number which can be placed at the sign of question mark (?) from the given alternatives.

• 2

• 4

• 6

• 8

If "A" denotes "subtracted from", "B" denotes "added to", "C" denotes "divided by", "D" denotes "multiplied by", then which of the following statement is correct?

• 3 A 12 B 16 D 17 C 1 = 163

• 5 C 7 A 9 D 8 B 2 = 294

• 13 C 13 A 13 B 13 D 13 = 157

• 18 C 16 D 49 A 27 B 9 = 200

If 9 * 2 * 5 = 23 and 1 * 4 * 8 = 29,  then 1 * 6 * 3 = ?

• 19

• 21

• 31

• 39

If "α" denotes "subtracted from", "β" denotes "multiplied by", "θ" denotes "added to" and "δ" denotes "divided by", then

10 θ 8 β 4 δ 8 α 9 = ?

• 7

• 5

• 9

• 11

If 9² A 4² B 3² = 56 and 7² A 2² B 1² = 44, then 11² A 5² B 7² = ?

• 29

• 32

• 47

• 24