1445
Q:

If 20% of a = b, then b% of 20 is the same as :

A) 4% of a B) 6% of a
C) 8% of a D) 10% of a

Answer:   A) 4% of a



Explanation:

20% of a = b 

=> (20/100) * a = b 

 b% of 20 =(b/100) x 20 = [(20a/100)  / 100] x 20= 4a/100 = 4% of a.

Q:

If each edge of a cube is increased by 10%, then the percentage increase in its surface area is:

 

A) 22% B) 19%
C) 20% D) 21%
 
Answer & Explanation Answer: D) 21%

Explanation:
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1 154
Q:

A can finish a piece of work in a certain number of days. B takes 45% more number of days to finish the same work independently. They worked together for 58 days and then the remaining work was done by B alone in 29 days. In how many days could A have completed the work, had he worked alone?

 

A) 110 days B) 118 days
C) 98 days D) 120 days
 
Answer & Explanation Answer: B) 118 days

Explanation:
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0 78
Q:

The marked price and cost price of a book are and , respectively. The discount in percentage is:

 

A) 8 % B) 12 %
C) 15 % D) 10 %
 
Answer & Explanation Answer: B) 12 %

Explanation:
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5 175
Q:

If 40% of a number is less than its 60% by 30, then the 20% of that number is:

 

A) 40 B) 50
C) 30 D) 60
 
Answer & Explanation Answer: C) 30

Explanation:
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0 245
Q:

If the single discount equivalent to successive discounts of 20% and x% is 24%, then the value of x is:

 

A) 6% B) 5%
C) 4% D) 8%
 
Answer & Explanation Answer: B) 5%

Explanation:
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0 347
Q:

A crate of fruits contains one spoiled fruit for every 25 fruits. 60% of the spoiled fruits were sold. If the seller had sold 48 spoiled fruits, then the number of fruits in the crate were:

 

A) 3000 B) 2000
C) 1200 D) 2400
 
Answer & Explanation Answer: B) 2000

Explanation:
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0 160
Q:

The cost price of 12 pens is equal to the selling price of 8 pens. The profit percentage is:

 

A) 50% B) 45%
C) 40% D) 55%
 
Answer & Explanation Answer: A) 50%

Explanation:
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2 321
Q:

A blanket is sold at discounts of 15% and 20%. Find the printed price of the blanket.

 

A) ₹800 B) ₹900
C) ₹950 D) ₹1000
 
Answer & Explanation Answer: D) ₹1000

Explanation:
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0 427