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यदि 19और5=14और2और4 9 और 5 = 14 और 2 और 4 3 = - 41, तो 7 $ 9 और 9 = ?

a

72

b

70

c

68

d

64

Answer : Option B
Explanation :

$ 9 & 5 = 14

⇒ 19 – 5 = 14

2 & 4 $ 3 = – 41

⇒ 2 – 43 = – 41

इसलिए,

7 $ 9 & 9 = ?

⇒ 79 – 9 = 70

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