70 is increased by 50%. Find the final number.
Options:
(A) 100
(B) 110
(C) 105
(D) 30
(E) 160 Stream of consciousness first, then make a decision:
Final number = Initial number + 50%(original number) = 70 + 50%(70) = 70 + 35 = 105.
Thus, the answer is (C).