NIIT Questions Papers so I am uploading a file of NIIT Questions Papers. Some content of file are:
1. what is the highest power of 3 in 200!?
1.97
2.197
3.65
4,82
2. In a kilometer race, A beats B by 200 mtr and C by 360 mtr.In a race of 500 mtr by how many metres does B beat C ?
1.80
2.200
3.100
4.160
3. Pipe A can fill a tank in 6hrs.due to leak at bottom it takes 9 hours to fill the tank.In what time the leak alone can empty the full tank?
1.16
2.15
3.18
4.17
Ans : 18 hours
4. In how many seconds does a 180m long train moving at 108kmph cross a platform of length 150 mtr?
1.11 sec
2.9sec
3.8sec
4.7sec
Ans : distance=180+150=330 mtr
speed=108*5/18=30 m/s
=330/30 = 11 sec
5. What is the total surface area of the hemisphere,whose radius is 10.5cm?
1.1049.5
2.1039.5
3.999.5
4.1085.5
6. 5 persons are sitting in a round table in such a way that the tallest person always sits next to the smallest person?
Ans : Keep tallest and smallest person as 1we have (4-1)! = 6
the tallest and the smallest person can be interchanged = 2
= 12
7. A car covers 4 successive 3km stretches at speed of 10kmph,20kmph,30kmph&:60kmph resp. Its average speed is?
1.20
2.20
3.30
4.40
Ans : 20 ; total distance = 4 * 3 = 12 km
total time = 3/10 + 3/20 + 3/30 + 3/60 = 36/60 hr
speed =12/36 * 60 = 20 kmph
8.By selling 99 pens, a trader gains the cost of 33 pens.find his gain percentage?
1.33 1/3%
2.66 2/3%
3.50%
4.75%
Ans :33 1/3%
9.How many kgs of Basmati rice costing Rs.42/kg should a shopkeeper mix with 25 kgs of ordinary rice costing Rs.24 per kg so that he makes a profit of 25% on selling the mixture at Rs.40/kg?
Ans : Let the amount of Basmati rice being mixed be x kgs. As the trader makes 25% profit by selling the mixture at Rs.40/kg, his cost /kg of the mixture = Rs.32/kg
(x * 42) + (25 * 24) = 32 (x + 25)
42x + 600 = 32x + 800
10x = 200 or x = 20 kgs
10. A certain sum of money amounts to Rs1125 in 5 years and to Rs1200 in 8 years. Find the sum and the rate of interest.
Ans : In 3 years more years, the interest is Rs75.
So in 1 year, the interest is Rs25 & in 5 years the interest is Rs125.
Sum +5 years interest= Rs1125. So the sum is Rs1000.
And the rate of interest is 25/1000*100 i.e.2.5% p.a.
1. what is the highest power of 3 in 200!?
1.97
2.197
3.65
4,82
2. In a kilometer race, A beats B by 200 mtr and C by 360 mtr.In a race of 500 mtr by how many metres does B beat C ?
1.80
2.200
3.100
4.160
3. Pipe A can fill a tank in 6hrs.due to leak at bottom it takes 9 hours to fill the tank.In what time the leak alone can empty the full tank?
1.16
2.15
3.18
4.17
Ans : 18 hours
4. In how many seconds does a 180m long train moving at 108kmph cross a platform of length 150 mtr?
1.11 sec
2.9sec
3.8sec
4.7sec
Ans : distance=180+150=330 mtr
speed=108*5/18=30 m/s
=330/30 = 11 sec
5. What is the total surface area of the hemisphere,whose radius is 10.5cm?
1.1049.5
2.1039.5
3.999.5
4.1085.5
6. 5 persons are sitting in a round table in such a way that the tallest person always sits next to the smallest person?
Ans : Keep tallest and smallest person as 1we have (4-1)! = 6
the tallest and the smallest person can be interchanged = 2
= 12
7. A car covers 4 successive 3km stretches at speed of 10kmph,20kmph,30kmph&:60kmph resp. Its average speed is?
1.20
2.20
3.30
4.40
Ans : 20 ; total distance = 4 * 3 = 12 km
total time = 3/10 + 3/20 + 3/30 + 3/60 = 36/60 hr
speed =12/36 * 60 = 20 kmph
8.By selling 99 pens, a trader gains the cost of 33 pens.find his gain percentage?
1.33 1/3%
2.66 2/3%
3.50%
4.75%
Ans :33 1/3%
9.How many kgs of Basmati rice costing Rs.42/kg should a shopkeeper mix with 25 kgs of ordinary rice costing Rs.24 per kg so that he makes a profit of 25% on selling the mixture at Rs.40/kg?
Ans : Let the amount of Basmati rice being mixed be x kgs. As the trader makes 25% profit by selling the mixture at Rs.40/kg, his cost /kg of the mixture = Rs.32/kg
(x * 42) + (25 * 24) = 32 (x + 25)
42x + 600 = 32x + 800
10x = 200 or x = 20 kgs
10. A certain sum of money amounts to Rs1125 in 5 years and to Rs1200 in 8 years. Find the sum and the rate of interest.
Ans : In 3 years more years, the interest is Rs75.
So in 1 year, the interest is Rs25 & in 5 years the interest is Rs125.
Sum +5 years interest= Rs1125. So the sum is Rs1000.
And the rate of interest is 25/1000*100 i.e.2.5% p.a.
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