ExamVeda
Login
Home
11
2 is what percent of 50 ?
Discuss
Answer & Solution
Answer: Option C
Solution:
Required % = $$\frac{2}{50}$$ × 100 = 4%
12
15% of 45% of a number is 105.3. What is 24% of that number.
Discuss
Answer & Solution
Answer: Option B
Solution:
Let the number be x
⇒ x × $$\frac{15}{100}$$ × $$\frac{45}{100}$$ = 105.3
⇒ x = 1560
⇒ Required answer
= $$\frac{24}{100}$$ × 1560
= 374.4
13
The ratio 5 : 4 expressed as a percent equals :
Discuss
Answer & Solution
Answer: Option A
Solution:
Required % = $$\frac{5}{4}$$ × 100 = 125%
Always writes a : b in % ⇒ $$\frac{a}{b}$$ × 100
14
If 60% of A = $$\frac{3}{4}$$ of B, then A : B is :
Discuss
Answer & Solution
Answer: Option D
Solution:
60% of A = $$\frac{3}{4}$$B
$$\frac{3}{5}$$A = $$\frac{3}{4}$$B
$$\frac{A}{B}$$ = $$\frac{5}{4}$$
⇒ A : B = 5 : 4
15
In an examination, 93% of students passed and 259 failed. The total number of students appearing at the examination was :
Discuss
Answer & Solution
Answer: Option A
Solution:
Percentage of failed students
= (100 - 93)% = 7%
According to the question,
7% → 259
1% → 37
100% → 3700
Total students = 3700
16
When 75 added to 75% of a number, the answer is the number. Find 40% of that number.
Discuss
Answer & Solution
Answer: Option C
Solution:
75% = $$\frac{3}{4}$$
Let the number = 4x
According to the question,
4x × $$\frac{3}{4}$$ + 75 = 4x
x = 75
Number = 75 × 4 = 300
Required answer :
= 300 × $$\frac{40}{100}$$
= 120
17
If 15% of (A + B) = 25% of (A - B), then what percent of B equal to A ?
Discuss
Answer & Solution
Answer: Option D
Solution:
$$\frac{15}{100}$$ (A + B) = $$\frac{25}{100}$$ (A - B)
⇒ 15A + 15B = 25A - 25B
⇒ 10A = 40B
⇒ A = 4B
Required % :
= $$\frac{A}{B}$$ × 100
= $$\frac{4B}{B}$$ × 100
= 400%
18
When 60 is subtracted from 60% of a number, the result is 60. The number is :
Discuss
Answer & Solution
Answer: Option D
Solution:
Note : In percentage always assume data. Which make your Calculation easier.
60% $$\frac{3}{5}$$
Let the number = 5x
Accounting to the question,
⇒ 5x × $$\frac{3}{5}$$ - 60 = 60
⇒ x = $$\frac{120}{3}$$
⇒ x = 40
Hence, required number :
= 5x
= 5 × 40
= 200
19
In an examination A got 25% marks more than B, B got 10% less than C and C got 25% more than D. If D got 320 marks out of 500, the marks obtained by A were :
Discuss
Answer & Solution
Answer: Option B
Solution:
Marks obtained by D = 320
Marks obtained by C
= 320 × $$\frac{125}{100}$$ = 400
Marks obtained by B
= 400 × $$\frac{(100 - 10)}{100}$$   = 360
Marks obtained by A
= 360 × $$\frac{125}{100}$$ = 450
Hence, required marks obtained by A = 450
20
A reduction of 10% in the price of an apple enable a man to buy 10 apples more for Rs. 54. The reduced price of apples per dozen is :
Discuss
Answer & Solution
Answer: Option A
Solution:
Let initial expenditure = 100 units
Percentage mcq solution image
Required increment = $$\frac{10}{90}$$ = $$\frac{1}{9}$$
1 unit = 10 apples
Original consumption = 9 units
= 9 × 10 = 90 apples
New consumption = 10 units
= 10 × 10 = 100 apples
New price = $$\frac{54}{100}$$ × 12 = Rs. 6.48 per dozen