Question:
For a fixed base, if the exponent decreases by 1, the number becomes
(a) one-tenth of the previous number
(b) ten times of the previous number
(c) hundredth of the previous number
(d) hundred times of the previous number
Solution:
(a) One-tenth of the previous number
Explanation: Suppose for 106, when the exponent is decreased by 1, it becomes 105. Hence, 105/106 = 1/10.
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