336. If A’s salary is 30% more than that of B, then by how much percent is B’s salary less than that of A ?

1. 1. 13.01%

   
   
   

   2. 13.07%

   
   
   

   3. 23.07%

   
   
   

   4. 23.01%

   
   
   

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1. View Hint View Answer Discuss in Forum

   Let B’s salary = Rs. 100
   If A’s salary is 30% more than that of B , then
   ∴ A's salary = Rs. 130
   

   ∴ Required percent =	30	× 100
   	130

   
   

   Correct Option: C

   Let B’s salary = Rs. 100
   If A’s salary is 30% more than that of B , then
   ∴ A's salary = Rs. 130
   

   ∴ Required percent =	30	× 100
   	130

   
   

   Required percent =	300	= 23 .07%
   	13

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337. A man spends 15% of his income. If his expenditure is Rs. 75, his income (in rupees) is :

1. 1. 400

   
   
   

   2. 300

   
   
   

   3. 750

   
   
   

   4. 500

   
   
   

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1. View Hint View Answer Discuss in Forum

   Let the man’s income be Rs. P.
   According to the question,
   

   P ×	15	= 75
   	100

   
   

   Correct Option: D

   Let the man’s income be Rs. P.
   According to the question,
   

   P ×	15	= 75
   	100

   
   

   ⇒ P =	75 × 100	= Rs. 500
   	15

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338. A’s salary was decreased by 50% and subsequently increased by 50%. How much per cent does he lose?

1. 1. 25%

   
   
   

   2. 50%

   
   
   

   3. 12	1	%
      	2

   
   
   

   4. No loss

   
   
   

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1. View Hint View Answer Discuss in Forum

   Here , y = 50%
   As we know that ,
   

   Effect on percentage =	- y2	%
   	100

   
   

   Correct Option: A

   Here , y = 50%
   As we know that ,
   

   Effect on percentage =	- y2	%
   	100

   
   

   Effect on percentage =		– 50 × 50		% = –25%
   		100

   
   Negative sign shows decrease.

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339. If A’s salary is 40% less than that of B, then how much percent is B’s salary more than that of A?

1. 1. 33	1
      	3

   
   
   

   2. 66	2
      	3

   
   
   

   3. 33	2
      	3

   
   
   

   4. 66	1
      	3

   
   
   

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1. View Hint View Answer Discuss in Forum

   According to question ,
   

   Required percent =		40		× 100
   		100 – 40

   
   

   Correct Option: B

   According to question ,
   

   Required percent =		40		× 100
   		100 – 40

   
   

   Required per cent =	4000	=	200	= 66	2	%
   	60		3		3

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340. P’s salary is 25% higher than Q, what percentage is Q’s salary lower than that of P ?

1. 1. 20

   
   
   

   2. 29

   
   
   

   3. 31

   
   
   

   4. 33	1
      	3

   
   
   

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1. View Hint View Answer Discuss in Forum

   Let Q,s salary = Rs. 100 .
   ∴ P’s salary = 125
   

   ∴ Required percent =		125 – 100		× 100
   		125

   
   

   Correct Option: A

   Let Q,s salary = Rs. 100 .
   ∴ P’s salary = 125
   

   ∴ Required percent =		125 – 100		× 100
   		125

   
   

   Required percent =	25 × 100	= 20% increase
   	125

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