HirePro Percentages Quiz-1

Answer: A
Final Price = Initial price + Initial price x 20/100
= Initial price x (1+20/100)
= Rs300x(1.2)
= Rs.360

Harsh stipend is less than Ayush's = [(10 / (100 + 10)] × 100 %
= ( 1000 / 110 )%
= 9.09 %

Answer:
Alcohol in 9 liters = 50% of 9 = 4.5 liters.
Suppose x liters of water are added. Then, there are 4.5 liters of alcohol in (9 + x) liters of diluted liquid.
Now, according to the question,
30% of (9 + x) = 4.5 liters.

Or,3/10(9+x)=4.5
Or, 27 + 3x = 45
Or, 3x = 18
Therefore, x=18/3
=6litres
6 liters of water will be required to be added.

Answer:

Suppose 100 students registered from Cambridge School. Then, we have

Appeared     Passed
Cambridge School → 100            70
Modern School →       120            70+ 50% of 70 = 105
Required % = (105/120)*100=87.5%
Therefore the answer is 87.5%

Answer:
Let the weights of Ayush and Piyush be 4x and 5x.
Now, ATQ,
(4x+110)/100+subodh'snewweight=82.8.....(i)
and ((4x+5x)*115)/100=82.8...(ii)
From (ii), x = 8
Putting in (i), we get
Piyush’s new weight = (82.8 - 35.2) = 47.6
%increase in Piyush's weight=((47.6-40)/40)*100)=19%
Piyush weight got increased by 19%

Answer:
Change any of the decreased values in the form of an increase.
Suppose we change it as
10% decrease = -10% increase
Now, substituting the the values in the formula

\%\text{ effect } = \text{ Inc }\% \text{ value } - \text{ Dec }\% \text{ value } - \frac{\text{Inc.}\% \text{ value }\times \text{ Dec }\% \text{ value }{100}$$<br /> % effect = $$ -10 - 8 - \frac{(-10)\times 8}{100}
= -18 + 0.8 = -17.2%
Therefore, the revenue will be reduced by 17.2%

Answer:
The only change required is to change the form of one increased % value to the decreased % value, i.e;
5% increase = -5% increase
Now, %effect = 20 - (- 5) - \frac{20\times (-5)}{100} = 20 + 5 + 1 = 26\%
The area of Anfeild got increased by 26%

Answer: C
Explanation:
Let the number be S.
According to the question,
(78 - 59)% of S = 323
⇒ (19 x S)/100 = 323
∴ S = (323 x 100)/19 = 1700
∴ 62% of 1700 = (62/100) x 1700 = 1054

Answer: C

S.I for 5 years = 1020 - 720 = 300
[Amount for 2 years = 720, A for 7 years = 1020, the difference gives S.I for 5 years]
S.I for each year = 300/5 = 60
Amount after 2 years = 720
S.I for 2 years = 120
Hence P = 720 - 120 = 600
S.I = P*R*T/100
60 = 600*R*1/100
R = 10%
Hence, Sum = 600 and rate% = 10

Answer:
Since there is an increase in the seats as well as in the price we will use:
Decrease = - (Increase)
Thus, the formula becomes:
[Latex]\% \text{ effect } = 25 - (-10) - \frac{25\times (-10)}{100} = 35 + 2.5 = 37.5[/Latex]