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Percentage - Aptitude MCQ Questions and Solutions with Explanations

Percentage MCQ Questions and answers with easy and logical explanations.Arithmetic Ability provides you all type of quantitative and competitive aptitude mcq questions on Percentage with easy and logical explanations. Percentage MCQ is important for exams like Banking exams,IBPS,SCC,CAT,XAT,MAT etc. Page-1 section-2

Each section contains 100 MCQs on Percentage .
1
x * 12 = 75% of 336 Find x.
Discuss
Answer & Solution
Answer: Option C
Solution:
$$\eqalign{ & 12x = \frac{{ {75 \times 336} }}{{100}} \cr & x = \frac{{ {75 \times 336} }}{{ {100 \times 12} }} \cr & x = 21 \cr} $$
2
A shop sells floor tiles at Rs. 48 per square meter. A contractor employs a machine that polishes the tiles that damages 10% of the total number of tiles which cannot be used any more. Calculate the amount that needs to be paid by contractor to tile shop owner, if the hall is of a square shape and has a perimeter of 400 meters?
Discuss
Answer & Solution
Answer: Option C
Solution:
Let the side of the square shaped hall be X meter
Then,
Perimeter = 4X
4X = 400
X = 100m
Area of the hall = 100 × 100 = 10000 sq. meter.
Now,
The cost on total tiles = 10000 × 48 = Rs. 480000
But, 10% damage has occurred on tiles which will also be included in cost i.e
Total cost = 480000 + 10% of 480000 = 480000 + 48000
Total cost = Rs. 5,28,000
3
125% of 860 + 75% of 480 = ?
Discuss
Answer & Solution
Answer: Option C
Solution:
$$\eqalign{ & { {\frac{{ {125 \times 860} }}{{100}}} + {\frac{{75 \times 480}}{{100}}} } \cr & = 1075 + 360 \cr & = 1435 \cr} $$
4
A person subscribing to sky cable for a year pack Rs. 1785. If the monthly subscription is Rs. 175, how much discount does a yearly subscriber get?
Discuss
Answer & Solution
Answer: Option C
Solution:
Yearly subscription rate = Rs. 1785
Charge for 12 month as rate Rs. 175 per month
= 12 × 175 = Rs. 2100
Discount = 2100 - 1785 = Rs. 315
% discount = $$\frac{{315 \times 100}}{{2100}}$$   = 15%
5
In a metro train there are 600 passengers out of which 34% are females. Fare of each male is Rs. 20 and each female's fare is 25% less than each male. What is the total revenue generated by all the passengers together?
Discuss
Answer & Solution
Answer: Option B
Solution:
Total Passengers = 600
No. of females = $$\frac{{600 \times 34}}{{100}}$$  = 204
No. of male passengers
= 600 - 204 = 396
Fare of each male = Rs. 20
Fare of female, 15% less, so,
= $$\frac{{20 \times 75}}{{100}}$$  = Rs. 15 each
Total revenue generated by male
= 396 × 20
= Rs. 7920
Total revenue generated by female
= 204 × 15
= 3060
Total Revenue
= 7920 + 3060
= Rs. 10980
6
In a test, minimum passing percentage for girls and boys are 45% and 60% respectively. A boy scored 767 marks and failed by 313 marks. What are the minimum passing marks for girls?
Discuss
Answer & Solution
Answer: Option D
Solution:
Minimum pass percentage for Boys = 60%
A boy gets 767 and failed by 313, it means
767 + 313 = 60%
1080 = 60%
60% = 1080
Or, 1% = $$\frac{{1080}}{{60}}$$
Or, 45% = $$\frac{{1080 \times 45}}{{60}}$$   = 810
So minimum passing marks for girls = 810
7
50 minutes is what percentage of a day (approx.)-
Discuss
Answer & Solution
Answer: Option A
Solution:
50 = x% of 24 × 60
x = 3.472%
x = 3.5% approx.
8
In an examination 36% are pass marks. If an examine gets 17 marks and fails by 10 marks, what are the maximum marks?
Discuss
Answer & Solution
Answer: Option B
Solution:
Pass mark = (17 + 10) = 27
Let maximum marks be x
Then 36% of x = 27
Or, $$\frac{{36{\text{x}}}}{{100}}$$ = 27
Or, 36x = 2700
Hence, x = 75
9
Find $$\frac{{100}}{3}$$ % of 600
Discuss
Answer & Solution
Answer: Option C
Solution:
$$\eqalign{ & \frac{{100}}{3}\% \,\,{\text{of}}\,\,600 \cr & = \frac{{100 \times 600}}{{3 \times 100}} \cr & = 200 \cr} $$
10
If 75% of the students in a school are boys and the number of girls is 420, the number of boys is:
Discuss
Answer & Solution
Answer: Option C
Solution:
No. of boys = 75%
No. Girls = 25% = 420
Now comparing,
25% = 420
1% = $$\frac{{420}}{{25}}$$
So, 75% = $$\frac{{420 \times 75}}{{25}}$$  = 1260
No. of boys = 1260