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% 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 × (81/256)= 31.64 Reduction in value = 100 – 31.64 = 68.36