Question
Find the wrong number, in the given number series.
320, 160, 80, 50, 20, 10Solution
ATQ,
Observe the pattern:
320 β 160 β 80 β 50 β 20 β 10
Check step-by-step:
320 Γ· 2 = 160 β
160 Γ· 2 = 80 β
80 Γ· 2 = 40 β, but we have 50 β
So 50 is incorrect.
Then:
Correct sequence:
320 β 160 β 80 β 40 β 20 β 10
β
Wrong number: 50
β
Correct number: 40
- Determine the final value of this expression:
(1/5) of {5β΄ - 24 Γ 14 + 12 Γ 18 - 10.5 of 10Β²} 3% of 842 ÷ 2% of 421 = ?
β225 + 27 Γ 10 + ? = 320
- Determine the value of βpβ if p = β529 + β1444
45 % of 180 + β144 * 8 = ?2 Β + 70 % of 80
Determine the value of 'p' in following expression:
720 Γ· 9 + 640 Γ· 16 - p = β121 X 5 + 6Β²- 7?2 = β20.25 Γ 10 + β16 + 32
- What will come in place of the question mark (?) in the following questions?
(2β΄ + 6Β²) Γ· 2 = ? 18(1/3) + 9(2/3) β 10(1/3) = 1(2/3) + ?