1. Two numbers are respectively 20% and 25% more than a third number. The percentage that is first of the second is?

A. 80% B. 85% C. 96% D. 125%

Answer: Option C
Explanation: 125 ---------- 120 100 ----------- ? => 96%
2. A sells his goods 50% cheaper than B but 50% dearer than C. The cheapest is?

A. A B. B C. C D. All Alike

Answer: Option C
Explanation: Let, B = 100 A = 50 C × ([latex]\frac{150}{100}[/latex]) = 50 3C = 100 C = 33.3 then 'C' Cheapest
3. The salary of a typist was at first raised by 10% and then the same was reduced by 5%. If he presently draws Rs.1045.What was his original salary?

A. 900 B. 950 C. 1000 D. 975

Answer: Option C
Explanation: x × ([latex]\frac{110}{100}[/latex]) × ([latex]\frac{95}{100}[/latex]) = 1045 x ×([latex]\frac{11}{10}[/latex]) × ([latex]\frac{1}{100}[/latex]) = 11 x = 1000
4. The tax on a commodity is diminished by 20% and its consumption increased by 15%. The effect on revenue is?

A. It increases by 8% B. It decreases by 8% C. No change in revenue D. It increases by 10% E. None

Answer: Option B
Explanation: 100 × 100 = 10000 80 × 115 = 9200 ----------- 10000 ---------- 800 100 ----------- ? => 8% decrease
5. A candidate got 35% of the votes polled and he lost to his rival by 2250 votes. How many votes were cast?

A. 7500 B. 5000 C. 6000 D. 3500

Answer: Option A
Explanation: 35% ----------- L 65% ----------- W ------------------ 30% ---------- 2250 100% --------- ? => 7500

1. If the price of gold increases by 50%, find by how much the quantity of ornaments must be reduced, so that the expenditure may remain the same as before?

A. 27[latex]\frac{2}{23}[/latex]% B. 33[latex]\frac{1}{3}[/latex]% C. 30% D. 19%

Answer: Option B
Explanation: 100 150 ------ 150 ------- 50 100 ------- ? => 33[latex]\frac{1}{3}[/latex]%
2. Subtracting 10% from X is the same as multiplying X by what number?

A. 80% B. 90% C. 10% D. 50%

Answer: Option B
Explanation: x - ([latex]\frac{10}{100}[/latex]) x = x × ? ? = 90%
3. If the numerator of a fraction is increased by 20% and its denominator is diminished by 25% value of the fraction is 2/15. Find the original fraction.

A. [latex]\frac{1}{12}[/latex] B. [latex]\frac{1}{8}[/latex] C. [latex]\frac{1}{6}[/latex] D. [latex]\frac{1}{4}[/latex]

Answer: Option A
Explanation: x × [latex]\frac{120}{100}[/latex] --------- =[latex]\frac{2}{15}[/latex] y × [latex]\frac{75}{100}[/latex] [latex]\frac{x}{y}[/latex] = [latex]\frac{1}{12}[/latex]
4. An engineering student has to secure 36% marks to pass. He gets 130 marks and fails by 14 marks. The maximum No. of marks obtained by him is?

A. 300 B. 400 C. 350 D. 500

Answer: Option B
Explanation: 130 14 ------- 36% ------ 144 100% ------ ? => 400
5. A and B’s salaries together amount to Rs. 2,000. A spends 95% of his salary and B spends 85% of his. If now their savings are the same, what is A’s salary?

A. Rs.500 B. Rs.750 C. Rs.1250 D. Rs.1500

Answer: Option D
Explanation: ([latex]\frac{5}{100}[/latex]) A = ([latex]\frac{15}{100}[/latex]) B A = 3B A + B = 2000 4B = 2000 => B = 500 A = 1500

1. A salesman’s terms were changed from a flat commission of 5% on all his sales to a fixed salary of Rs.1000 plus 2.5% commission on all sales exceeding Rs. 4,000. If his remuneration as per new scheme was Rs. 600 more than that by the previous schema, his sales were worth?

A. Rs. 14,000 B. Rs. 12,000 C. Rs. 30,000 D. Rs. 40,000

Answer: Option B
Explanation: [1000 + (x - 4000) × ([latex]\frac{2.5}{100}[/latex])] - x × ([latex]\frac{5}{100}[/latex]) = 600 x = 12000
2. 5% people of a village in Sri Lanka died by bombardment, 15% of the remainder left the village on account of fear. If now the population is reduced to 3553, how much was it in the beginning?

A. 3800 B. 4200 C. 4400 D. 5500

Answer: Option C
Explanation: x × ([latex]\frac{95}{100}[/latex])× ([latex]\frac{85}{100}[/latex]) = 3553 x = 4400
3. In a factory, there are 40% technicians and 60% non-technicians. If the 60% of the technicians and 40% of non-technicians are permanent employees, then the percentage of workers who are temporary is?

A. 32% B. 42% C. 52% D. 62%

Answer: Option C
Explanation: 24 + 24 = 48 => 100 - 48 = 52%
4. A mixture of 70 liters of wine and water contains 10% water. How much water must be added to make water 12½% of the total mixture?

A. 12 liters B. 10 liters C. 4 liters D. 2 liters

Answer: Option D
Explanation: 70 × ([latex]\frac{10}{100}[/latex]) = 7 87[latex]\frac{1}{2}[/latex]% ------- 63 12[latex]\frac{1}{2}[/latex]% ------- ? => 9-7 = 2
5. The amount of water (in ml) that should be added to reduce 9 ml. Lotion, containing 50% alcohol, to a lotion containing 30% alcohol, is?

A. 3 B. 4 C. 5 D. 6

Answer: Option D
Explanation: 30% ----- 4.5 70% ------? => 10.5 - 4.5 = 6 ml