Surds & Indices - Math GK

1. (2×3)3 ÷ (4 × 9)2 × (27×8)2 = (6)?

(A) 4
(B) 5
(C) 6
(D) 8

2. (21)? × (21)6.5 = (21)12.4

(A) 18.9
(B) 4.4
(C) 6.9
(D) इनमें से कोई नहीं

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