SSC GD Constable 2021 · Question 240 of 377
percentage
Given: Given range = 1 to 40 Unit's digit = 1 or 9 Calculation: Numbers that have 1 or 9 in the unit's digit in the range of 1 to 40 ⇒ 1, 9, 11, 19, 21, 29, 31, 39 So, 8 numbers that have 1 or 9 in the unit's digit in the range of 1 to 40. Numbers in between 1 and 40 = 40 8 Now, % = 40 × 100% = 20% ∴ 20.00 percentage of numbers from 1 to 40 has 1 to 9 in the unit's digit.
Source: SSC GD Constable 2021 Prev. Year Paper (2021-11-29 Shift 1) English — Prepp (with solutions) · reliable-secondary
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