Answer: Option A
Explanation:
(256)0.16 x (256)0.09 = (256)(0.16 + 0.09)
= (256)0.25
= (256)(25/100)
= (256)(1/4)
= (44)(1/4)
= 44(1/4)
= 41
= 4
Answer: Option B
= 10150 - 146
= 104
= 10000.
= (25)(3/2)
= (52)(3/2)
= (5)2 x (3/2)
= 53
= 125.
Let (25)7.5 x (5)2.5 ÷ (125)1.5 = 5x.
5x = 5(15 + 2.5 - 4.5)
5x = 513
x = 13.
Answer: Option C
9n x 3n - 1
(32)n x 3n - 1
(32n x 3n - 1)
32n x 3n - 1
3(2n + n - 1)
33n + 1
33n - 1
x = 13.