Hello,

Hame pata hai ki question main 6-3 = 27 hai. Iska matlab hai ki 9*(6-3)  = 27. Phir 5-4 de rkha hai ,iska matlab hai ki 9*(5-4) = 9. Thik hai . Phir question main ye poocha hai ki 6-4 kya hoga. Isliye apan pehle ki tarah karenge ki 9*(6-4) . Ye hoga 18.

Yaani apka answer hai 18.

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All the best!

Namaskar

Hame yah diya hua hai ki 6-3=27

Aaiye Ise samajhne ki koshish karte Hain, 6-3=3, aur 9x3 hota hai 27

Phirse, Hame yah diya hua hai ki 5-4=9

Aaiye Ise bhi samajhne ki koshish karte Hain, 5-4=1, aur 9x1 hota hai 9

Ab, 6-4 = 2, aur 9x 2 hota hai 18.

Atah, 6- 4 = 18, yahi aapke prashn ka uttar hai

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Thankyou