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Mathematics Mcqs

If cost of sugar increases by 25%. How much percent consumption of sugar should be decreased in order to keep expenditure fixed?

If cost of sugar increases by 25%. How much percent consumption of sugar should be decreased in order to keep expenditure fixed?

A. 10%
B. 15%
C. 20%
D. 25%
E. None
Explanation:
100
125
—–
125 —– 25
100 —— ? => 20%

If cost of sugar increases by 25%. How much percent consumption of sugar should be decreased in order to keep expenditure fixed? Read More »

Mathematics Mcqs, Percentage Mcqs

Nawaz Sahrif spends 10% of his income in house rent, 20% of the rest on his children’s education, 25% of the rest miscellaneous causes. If he now posses Rs. 1944 then his income is_______?

Nawaz Sahrif spends 10% of his income in house rent, 20% of the rest on his children’s education, 25% of the rest miscellaneous causes. If he now posses Rs. 1944 then his income is_______?

A. Rs.3600
B. Rs.4000
C. Rs.4500
D. Rs.3000
Explanation:
X * (90/100) * (80/100) * (75/100) = 1944
X * 0.9 * 0.8 * 0.75
X = 1944/0.54
X = 3600

Nawaz Sahrif spends 10% of his income in house rent, 20% of the rest on his children’s education, 25% of the rest miscellaneous causes. If he now posses Rs. 1944 then his income is_______? Read More »

Mathematics Mcqs, Percentage Mcqs

Masood’s salary is reduced by 10% and then reduced salary is increased by 10%. Find ,how many percentage his present salary is less as compared to his previous salary?

Masood’s salary is reduced by 10% and then reduced salary is increased by 10%. Find ,how many percentage his present salary is less as compared to his previous salary?

A. Nothing
B. 10%
C. 1%
D. 5%
Explanation:
10*10
——– = 1%
100

Masood’s salary is reduced by 10% and then reduced salary is increased by 10%. Find ,how many percentage his present salary is less as compared to his previous salary? Read More »

Mathematics Mcqs, Percentage Mcqs

There were two candidates in an election. Winner candidate received 62% of votes and won the election by 288 votes. Find the number of votes casted to the winning candidate?

There were two candidates in an election. Winner candidate received 62% of votes and won the election by 288 votes. Find the number of votes casted to the winning candidate?

A. 456
B. 744
C. 912
D. 1200
Explanation:
W = 62% L = 38%
62% – 38% = 24%
24% ——– 288
62% ——– ? => 744

There were two candidates in an election. Winner candidate received 62% of votes and won the election by 288 votes. Find the number of votes casted to the winning candidate? Read More »

Mathematics Mcqs, Percentage Mcqs

If population of certain city increases at the rate of 5%. If population in 1981 was 138915, then population in 1978 was__________?

If population of certain city increases at the rate of 5%. If population in 1981 was 138915, then population in 1978 was__________?

A. 1,20,000
B. 1,10,000
C. 1,00,000
D. 90,000
Explanation:
X * (105/100) * (105/100) * (105/100) = 138915
X = 138915/1.157625
X = 120000

If population of certain city increases at the rate of 5%. If population in 1981 was 138915, then population in 1978 was__________? Read More »

Mathematics Mcqs, Percentage Mcqs

At an examination in which full marks were 500. A got 10% less than B, B got 25% more than C and C got 20% less than D. If A got 360 marks, what percentage of full marks was obtained by D?

At an examination in which full marks were 500. A got 10% less than B, B got 25% more than C and C got 20% less than D. If A got 360 marks, what percentage of full marks was obtained by D?

A. 70%
B. 90%
C. 80%
D. 75%
Explanation:
A B C D
90 100 80 100
A D
90 —– 100
360 —— ? = 400
500 —— 400
100 ——- ? => 80%

At an examination in which full marks were 500. A got 10% less than B, B got 25% more than C and C got 20% less than D. If A got 360 marks, what percentage of full marks was obtained by D? Read More »

Mathematics Mcqs, Percentage Mcqs

The tax on a commodity is diminished by 20% but its consumption is increased by 10%. Find the decrease percent in the revenue derived from it?

The tax on a commodity is diminished by 20% but its consumption is increased by 10%. Find the decrease percent in the revenue derived from it?

A. 20%
B. 18%
C. 15%
D. 12%
Explanation:
100 * 100 = 10000
80 * 110 = 8800
10000——- 1200
100 ——- ? = 12%

The tax on a commodity is diminished by 20% but its consumption is increased by 10%. Find the decrease percent in the revenue derived from it? Read More »

Mathematics Mcqs, Percentage Mcqs

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__________?

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
Explanation:
4.5 4.5
30% 70%
30% —– 4.5
70% ——? => 10.5 – 4.5 = 6 ml

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__________? Read More »

Mathematics Mcqs, Percentage Mcqs

A mixture of 70 liters of wine and water contains 10% water. How much water must be added to make water 12 ½% of the total mixture?

A mixture of 70 liters of wine and water contains 10% water. How much water must be added to make water 12 ½% of the total mixture?

A. 12 liters
B. 10 liters
C. 4 liters
D. 2 liters
Explanation:
70 * (10/100) = 7
Wine Water
87 1/2% 12 1/2%
87 1/2% ——- 63
12 1/2% ——-? => 9-7=2

A mixture of 70 liters of wine and water contains 10% water. How much water must be added to make water 12 ½% of the total mixture? Read More »

Mathematics Mcqs, Percentage Mcqs

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________?

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%
Explanation:
Total = 100
T= 40 NT= 60
40*(60/100)=24 60*(40/100)=24
24 + 24 = 48 => 100 – 48 = 52%

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________? Read More »

Mathematics Mcqs, Percentage Mcqs