1. 40% of a number is more than 20% of 650 by 190. Find the number?
A. 600
B. 700
C. 800
D. 900
Answer: Option C
Explanation:
([latex]\frac{40}{100}[/latex]) x – ([latex]\frac{20}{100}[/latex]) x 650 = 190
[latex]\frac{2}{5}[/latex] x = 320
x = 800
2. 25% of 30% of 45% is equal to?
A. 0.03375
B. 0.3375
C. 3.375
D. 33.75
Answer: Option A
Explanation:
([latex]\frac{25}{100}[/latex]) x ([latex]\frac{30}{100}[/latex]) x ([latex]\frac{45}{100}[/latex])
[latex]\frac{1}{4}[/latex] x [latex]\frac{3}{10}[/latex] x [latex]\frac{9}{20}[/latex]
[latex]\frac{27}{800}[/latex] = 0.03375
3. 60% of a number is added to 120, the result is the same number. Find the number?
A. 300
B. 200
C. 400
D. 500
Answer: Option A
Explanation:
([latex]\frac{60}{100}[/latex]) x + 120 = x
2x = 600
x = 300
4. 85% of a number is added to 24, the result is the same number. Find the number?
A. 150
B. 140
C. 130
D. 160
Answer: Option D
Explanation:
([latex]\frac{85}{100}[/latex]) x + 24 = x
3x = 480
x = 160
5. 40 is subtracted from 60% of a number, the result is 50. Find the number?
A. 150
B. 140
C. 130
D. 110
Answer: Option A
Explanation:
([latex]\frac{60}{100}[/latex]) x – 40 = 50
6x = 900
x = 150