833
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:

Selling price of a table is Rs 2808. If profit percentage is 17%, then what is the cost price (in Rs) of table?

A) 2288 B) 2300
C) 2400 D) 3285
 
Answer & Explanation Answer: C) 2400

Explanation:
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0 0
Q:

When a number is increased by 69, it becomes 103% of itself. What is the number?

A) 1300 B) 3300
C) 2300 D) 4300
 
Answer & Explanation Answer: C) 2300

Explanation:
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1 85
Q:

If 1 shirt is offered free on purchase of 4 shirts, what is the effective discount (in %) on each shirt?

A) 25 B) 20
C) 16 D) 24
 
Answer & Explanation Answer: B) 20

Explanation:
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0 61
Q:

Priya got 9 marks more in History than what she got in Geography. Her history marks are 56% of the sum of her History and Geography marks. What are her Geography marks?

A) 42 B) 65
C) 53 D) 33
 
Answer & Explanation Answer: D) 33

Explanation:
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1 54
Q:

If on a Sale there is 40% discount on the marked price of Rs 1000, but the sale is done at Rs 510 only then what additional discount (in %) did the customer get?

A) 25 B) 15
C) 10 D) 30
 
Answer & Explanation Answer: B) 15

Explanation:
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0 55
Q:

In a hostel the rent per room is increased by 20%. If number of rooms in the hostel is also increased by 20% and the hostel is always full, then what is the percentage change in the total collection at the cash counter?

A) 30% B) 40%
C) 44% D) 48%
 
Answer & Explanation Answer: C) 44%

Explanation:
Let initial rent be rs 10
And initial rooms be 10
So initial collection = 10*10 = Rs 100
Now new rent = 10 + 20% of 10 = 12
New no of rooms = 10 + 20% of 10 = 12
So new collection = 12*12 = 144
% change in collection = (144-100)/100*100 = 44%
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3 299
Q:

x, y and z are three numbers such that x is 30% of z and y is 40% of z. If x is p% of y, then what is the value of p?

A) 45 B) 55
C) 65 D) 75
 
Answer & Explanation Answer: D) 75

Explanation:

x = 30% of z = 30z/100 = 3z/10

y = 40% of z = 40z/100 = 4z/10

According to the question,(x/y)*100 = p%

p% = 3z/100/4z/100×100= 75%

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3 202
Q:

Raman spends 80% of his income. If his income is increased by 25% and the expenditure increase by 10%, then what will be the percentage increase in his savings?

A) 17 B) 70
C) 77 D) 85
 
Answer & Explanation Answer: D) 85

Explanation:
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4 315