If A is 95% of B, then what per cent of A is B?

This question was previously asked in
SSC CGL 2023 Tier-I Official Paper (Held On: 14 Jul 2023 Shift 1)
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  1. \(110 \frac{3}{19} \% \)
  2. \(104 \frac{7}{19} \% \)
  3. \(108 \frac{17}{19} \% \)
  4. \(105 \frac{5}{19} \%\)

Answer (Detailed Solution Below)

Option 4 : \(105 \frac{5}{19} \%\)
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Detailed Solution

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Given:

A is 95% of B

Concept Used:

x% of y = (x/100) × y

y% of x = (y/100) × x

Calculation:

According to the question, we have

A is 95% of B, 

⇒ A = (95/100)B

⇒ A/B = 19/20

⇒ B/A = 20/19

⇒ A = (19B/20)

Now, Required % = [B/(19B/20)] × 100

⇒ 105(5/19)%

105(5/19) per cent of A is B.

Alternate Method

According to the question 

Let the value of B = 100

So, the value of A = 95   [ ∵ A is 95% of B ]

Now, We have to find what per cent of A is B

?% of A = B

⇒ (?/100) × 95 = 100

⇒ ? = (100 × 100)/95

⇒ ? = 105(5/19)%

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