Question
If 27 * 4 = 77 and 31 * 9 = 239, then 21 * 6 = ?
यदि 27 * 4 = 77 और 31 * 9 = 239, तो 21 * 6 =?
Answer C.
C.27 * 4 = 77
27(4-1) x 4=77
31 * 9 = 239
31(9-1) x 9=239
21 * 6 =?
21(6-1) x 6=99
So the correct answer is option C.
C.27 * 4 = 77
27(4-1) x 4=77
31 * 9 = 239
31(9-1) x 9=239
21 * 6 =?
21(6-1) x 6=99
इसलिए सही उत्तर विकल्प C है।
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