2
CHAPTER
Percentage and Its
Applications
MCQ TYPE QUESTIONS exchange rate. During the period 2012-2013 the
exchange rate for the USD increased from
2016 50/ USD to 60/ USD. India's GDP in USD
1. In a huge pile of
apples and oranges, both ripe during the period 2012-2013
and unripe mixed together, 15% are (a) increased by 5% (6) decreased by 13%
Of the unripe fruits, 45% are
unripe fruits.
apples. Of the ripe (c) decreased by 20% d) decreased by 11%
ones, 66% are oranges. If the pile contains a total
of 5692000 fruits, how many of them are
apples?
2013
(a) 2029198 8. A firm is selling its product at 60 per unit. The
(6) 2467482
total cost of production is 100 and firm is earning
(c) 2789080 (d) 3577422 total profit of T 500. Later, the total cost increased
2. A person moving through a tuberculosis by 30%. By what percentage the price should be
prone
zone has a 50% probability of becoming infected. increased to maintained the same profit level.
However, only 30% of infected people develop the (a) 5 (6) 10
disease. What percentage of people moving
through a tuberculosis prone zone remains (c) 15 d) 30
infected but does not show symptoms of disease? 2012
(a) 15 (6) 33 9. An automobile plant contracted to buy shock
(c) 35 d) 37 absorbers from two suppliers X and Y. X supplies
60% andY supplies 40% of the shock absorbers.
3. (x % of y) + (y % ofx) is equivalent to .
All shock absorbers are subjected to a quality test.
(a) 2% off xy 2 % of xy/100)
The ones that pass the quality test considered
are
reliable. OfX's shock absorbers, 96% are reliable.
(c) xy % of 100 (d) 100 % of ay
Of Y's shock absorbers, 72% are reliable.
2014 The probability that a randomly chosen shock
4. The population of a new city is 5 million and is which is found to be reliable, is made
growing at 20% annually. How many years would
absorber,
by Y is
it take to double at this growth rate? (a) 0.288 (6) 0.334
(a) 3-4 years (6) 4-5 years (c) 0.667 (d) 0.720
(c) 5-6years (d) 6-7 years
5. One percent of the people of country X are taller
2011
10. There are two candidates P and Q in an election.
than 6 ft. Two percent of the people of country Y
During the campaign, 40% of the voters promised
are taller than 6 ft. There are thrice as many
to vote for P, and-rest for Q. However, on the day
people in country X as in country Y. Taking both
of election 15% of the voters went back on their
countries together, what is the percentage of promise to vote for P and instead voted for
people taller than 6 ft? Q.25% of the voters went back on their promise
(a) 3.0 (b) 2.5 to vote for Q and instead voted for P. Suppose, P
(c) 1.5 (d) 1.25 lost by 2 votes, then what was the total number
6. Industrial consumption of power doubled from of voters?
2000-2001 to 2010-2011. Find the annual rate of (a) 100 (6) 110
increase in percent assuming it to be uniform c) 90 d) 95
over the years.
NUMERICAL TYPE QUESTION
(a) 5.6 (b) 7.2
(c) 10.0 (d) 12.2 2015
7. The Gross Domestic Product (GDP) in 1. From a circular sheet of paper of radius 30 cm, a
Rupees
international sector of 10% area is removed. If the remaining
grew at 7% during 2012-2013. For
comparison, the GDP is compared in US Dollars part is used to make a conical surface, then
(USD) after conversion based on the market the ratio ofthe radius and height of the cone is
CHAPTER
Percentage and Its
Applications
MCQ TYPE QUESTIONS exchange rate. During the period 2012-2013 the
exchange rate for the USD increased from
2016 50/ USD to 60/ USD. India's GDP in USD
1. In a huge pile of
apples and oranges, both ripe during the period 2012-2013
and unripe mixed together, 15% are (a) increased by 5% (6) decreased by 13%
Of the unripe fruits, 45% are
unripe fruits.
apples. Of the ripe (c) decreased by 20% d) decreased by 11%
ones, 66% are oranges. If the pile contains a total
of 5692000 fruits, how many of them are
apples?
2013
(a) 2029198 8. A firm is selling its product at 60 per unit. The
(6) 2467482
total cost of production is 100 and firm is earning
(c) 2789080 (d) 3577422 total profit of T 500. Later, the total cost increased
2. A person moving through a tuberculosis by 30%. By what percentage the price should be
prone
zone has a 50% probability of becoming infected. increased to maintained the same profit level.
However, only 30% of infected people develop the (a) 5 (6) 10
disease. What percentage of people moving
through a tuberculosis prone zone remains (c) 15 d) 30
infected but does not show symptoms of disease? 2012
(a) 15 (6) 33 9. An automobile plant contracted to buy shock
(c) 35 d) 37 absorbers from two suppliers X and Y. X supplies
60% andY supplies 40% of the shock absorbers.
3. (x % of y) + (y % ofx) is equivalent to .
All shock absorbers are subjected to a quality test.
(a) 2% off xy 2 % of xy/100)
The ones that pass the quality test considered
are
reliable. OfX's shock absorbers, 96% are reliable.
(c) xy % of 100 (d) 100 % of ay
Of Y's shock absorbers, 72% are reliable.
2014 The probability that a randomly chosen shock
4. The population of a new city is 5 million and is which is found to be reliable, is made
growing at 20% annually. How many years would
absorber,
by Y is
it take to double at this growth rate? (a) 0.288 (6) 0.334
(a) 3-4 years (6) 4-5 years (c) 0.667 (d) 0.720
(c) 5-6years (d) 6-7 years
5. One percent of the people of country X are taller
2011
10. There are two candidates P and Q in an election.
than 6 ft. Two percent of the people of country Y
During the campaign, 40% of the voters promised
are taller than 6 ft. There are thrice as many
to vote for P, and-rest for Q. However, on the day
people in country X as in country Y. Taking both
of election 15% of the voters went back on their
countries together, what is the percentage of promise to vote for P and instead voted for
people taller than 6 ft? Q.25% of the voters went back on their promise
(a) 3.0 (b) 2.5 to vote for Q and instead voted for P. Suppose, P
(c) 1.5 (d) 1.25 lost by 2 votes, then what was the total number
6. Industrial consumption of power doubled from of voters?
2000-2001 to 2010-2011. Find the annual rate of (a) 100 (6) 110
increase in percent assuming it to be uniform c) 90 d) 95
over the years.
NUMERICAL TYPE QUESTION
(a) 5.6 (b) 7.2
(c) 10.0 (d) 12.2 2015
7. The Gross Domestic Product (GDP) in 1. From a circular sheet of paper of radius 30 cm, a
Rupees
international sector of 10% area is removed. If the remaining
grew at 7% during 2012-2013. For
comparison, the GDP is compared in US Dollars part is used to make a conical surface, then
(USD) after conversion based on the market the ratio ofthe radius and height of the cone is
