45% of ? = 25% of 355
A)195
B)176
C)127
D)197.22
Mil contain 10% of water.What quantity of pure milk is should be added to 15litre of milk to reduce the water percentage is 7%
A)6 lit
B)6.4 lit
C)6.2 lit
D)6.6 lit
Out of 500 students of a school 35% students plays football, 25% plays cricket and 20% neither play football nor cricket.How many students play football and cricket ?
A)200
B)100
C)50
D)94
The price of sugar is reduced by 3%.How many kg of sugar can now be bought for the money which was sufficient to buy 50kg of rice earlier ?
A)50kg
B)55kg
C)51.5kg
D)56kg
Fresh fruits contains 70% of water and dry fruits contain 20% of water.How much dry fruit can be obtained from 100kg of fresh fruits ?
A)35
B)37
C)37.5
D)40
Answer
In an examination , full mark is 500, A gets 25% more than B, B gets 40% more than C and C gets 60% more than D.If A got 320 ,what percentage of full marks did D got (approx)?
A)21
B)22
C)23
D)24
If Harish height is 30% less than that of Yokesh , How much percentage Yokesh height is more than that of Harish ?
A)42.58%
B)42.8%
C)42.83%
D)42.85%
Depreciation applicable to an equipment is 25.%. The value of the equipment after 4 years from now will be less by(in percentage)?
A)68.36%
B)68.63%
C)68.33%
D)68.66%
The population of a city is increased 5% ,7% and 11% in the last three years, What will be the present population if the population of a town is 2,40,000 three years ago ?
A)2,99,600
B)2,99,500
C)2,99,400
D)2,99,300
500 pencils were distributed equally among children in such a way that the number of pencil received by each child is 20% of the total number of children. How many pencil did each child receive ?
A)45
B)50
C)55
D)43

Solution

Answer -D) 197.22
Explanation :
(45/100) × X = (25/100) × 355
X =(100/45) ×(25/100) × 355 = 197.22
Answer – B) 6.4 lit
Explanation :
10% of water in 15 lit of milk =(10/100) × 15 = 1.5
X lit of pure milk added to reduce water to 7% $= (1.5)/(x+15) =7/100$ 150 = 105+7x
7x = 45
X = 45/7 = 6.4lit
Answer -A) 200
Explanation :
Football = n(A) = (35/100)×500 = 175
Cricket = n(B) = (25/100)×500 = 125
neither play football nor cricket = ( 20/100)× 500 = 100
both football and cricket = n(A U B) = 175 + 125 -100 = 200
Answer -C) 51.5 kg
Explanation :
Let one kg of sugar earlier = Rs. 100
50 kg of sugar earlier = Rs. 5000
Now 1 kg of sugar = Rs.97
Quantity to buy now = 5000/97 = 51.5kg
Answer – C) 37.5
Explanation :
Quantity of pulb in 100kg of fresh fruit = (100 – 70) ×100= 30kg
Quantity of dry fruit be x kg
(100 – 20 ) % of x = 30
(80/100) x = 30
X = (30 × 100)/80 = 37.5
Answer – C) 23Explanation :
A = 125/100 of B => B =4/5 A
B = 140/100 of C => C = 5/7 B
C = 160/100 0f D => D = 5/8 C
B = (4/5) × 320 = 256
C = (5/7) × 256 = 183
D = (5/8) × 183 = 114
D percentage = (114/500) × 100 = 23%
Answer -D) 42.85%
Answer – A) 68.36%
Explanation :
Let present value = 100 lit
Value after 4 years =
$[100\times(1- 25/100 )^4 ] = 100 \times3/4 \times3/4 \times3/4 \times3/4$
= 100 × (81/256)= 31.64
Reduction in value = 100 – 31.64 = 68.36
Answer -D) 2,99,300
Explanation :
2,40,000 × (105 / 100) × (107 / 100) × (111 / 100) = 2,99,300
Answer -B) 50
Explanation :
Total no of children be X
X × (20X/100) = 500
X^2 /5 = 500
X^2 = 500 × 5 = 2500
X = 50

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