# For a fixed base,

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.