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Question 1 of 10
1. Question
1 pointsCategory: Quantitative AptitudeA Sphere is cut into two hemisphere. One of them is used as bowl. It takes 12 bowlfuls of this to fill a conical vessel of height 18cm and radius 6cm.Then the radius of the sphere will be
Correct
Explanation:
Volume of the conical vessel = 1/3πr2h = (1/3) π(36*18) = 216πcm3
Volume of hemisphere = 8*2/3πr3
216π = 12*2/3πr3
r3 = 216*3/12*2 = 27
r = 3Incorrect
Explanation:
Volume of the conical vessel = 1/3πr2h = (1/3) π(36*18) = 216πcm3
Volume of hemisphere = 8*2/3πr3
216π = 12*2/3πr3
r3 = 216*3/12*2 = 27
r = 3 
Question 2 of 10
2. Question
1 pointsCategory: Quantitative AptitudeArrange the following fraction in descending order: 3/7, 2/5, 4/11, 5/9 and 7/13
Correct
Explanation:
3/7 = 0.4285
2/5 = 0.4
4/11 =0.3636
5/9 =0.5556
7/13 =0.5385
5/9>7/13>3/7>2/5>4/11Incorrect
Explanation:
3/7 = 0.4285
2/5 = 0.4
4/11 =0.3636
5/9 =0.5556
7/13 =0.5385
5/9>7/13>3/7>2/5>4/11 
Question 3 of 10
3. Question
1 pointsCategory: Quantitative AptitudeA man buys an article and sell it at a profit of 15%.If he bought it at 15% less and sold it for Rs.70 less, he would have gained 20%. Find CP
Correct
Explanation:
A(115/100)70 = A(85/100)(120/100)
A(115*100 – 85*120)/100*100 = 70
A = 70*10000/1150085*120 = 700000/1300 = 538.46 = 538Incorrect
Explanation:
A(115/100)70 = A(85/100)(120/100)
A(115*100 – 85*120)/100*100 = 70
A = 70*10000/1150085*120 = 700000/1300 = 538.46 = 538 
Question 4 of 10
4. Question
1 pointsCategory: Quantitative AptitudeIf a feast of 100 persons, 50 persons like coke, 60 persons like pepsi and 10 people like neither coke nor pepsi.Find the number of persons who likes coke and pepsi both
Correct
Explanation:
No of persons who likes both coke and pepsi = 50+60+10 – 100 = 120100 = 20Incorrect
Explanation:
No of persons who likes both coke and pepsi = 50+60+10 – 100 = 120100 = 20 
Question 5 of 10
5. Question
1 pointsCategory: Quantitative AptitudeThere are two examination halls A and B. If 10 students are sent from A to B, the number of students in both the halls are same. If 20 students are sent from B to A, then the no of students in A become twice the number of students in B. The number of students in A, B is
Correct
Explanation:
x10 = y+10
xy = 20…………….(1)
x+20=2(y20)
x2y=60…………….(2)
solve (1) & (2)
2x2y =40
x2y=60
we get x = 100, y = 80Incorrect
Explanation:
x10 = y+10
xy = 20…………….(1)
x+20=2(y20)
x2y=60…………….(2)
solve (1) & (2)
2x2y =40
x2y=60
we get x = 100, y = 80 
Question 6 of 10
6. Question
1 pointsCategory: Quantitative AptitudeThe compound Interest on a certain sum for two successive years are Rs.125 and Rs.136.75.The rate of interest per annum is
Correct
Explanation:
Difference = 136.75 – 125 = 11.25
SI on Rs.125 for 1 year = Rs.11.25
R = 11.25*100/125*1 = 9%Incorrect
Explanation:
Difference = 136.75 – 125 = 11.25
SI on Rs.125 for 1 year = Rs.11.25
R = 11.25*100/125*1 = 9% 
Question 7 of 10
7. Question
1 pointsCategory: Quantitative AptitudeWhen one litre of water is added to a mixture of milk and water the new mixture contain 25% of milk. When one litre of milk is added to the new mixture the resulting mixture contains 40% milk. The Percentage of milk in the original mixture was
Correct
Explanation:
Let there be 1 litre of milk in 5 litres of mixture
% of milk = (1/3+1)*100 = 25%
Again one litre of milk is added to the mixture
= (1+1/4+1)*100 = 40%
% of milk in the original mixture = (1/3)*100 = 33(1/3)Incorrect
Explanation:
Let there be 1 litre of milk in 5 litres of mixture
% of milk = (1/3+1)*100 = 25%
Again one litre of milk is added to the mixture
= (1+1/4+1)*100 = 40%
% of milk in the original mixture = (1/3)*100 = 33(1/3) 
Question 8 of 10
8. Question
1 pointsCategory: Quantitative AptitudeFind the number of ways you can arrange the letters of word RAILWAY such that the vowels do not come in the beginning ?
Correct
Explanation:
Consonants can be selected from 4 consonants at the first place, so 4 choices
Now 6 letters left including two As, for that 6!/2 = 360
So total = 360*4Incorrect
Explanation:
Consonants can be selected from 4 consonants at the first place, so 4 choices
Now 6 letters left including two As, for that 6!/2 = 360
So total = 360*4 
Question 9 of 10
9. Question
1 pointsCategory: Quantitative Aptitude(6399.90/79.60) + 56.08*99.09 = 10* ?
Correct
Explanation:
(6400/80) + 56*100 = 5680
? = 5680/10 = 568Incorrect
Explanation:
(6400/80) + 56*100 = 5680
? = 5680/10 = 568 
Question 10 of 10
10. Question
1 pointsCategory: Quantitative AptitudeA boat can travel 12km upstream in 40 minutes. If the speed of the current is 1/5 of the speed of the boat in still water, how much distance can the boat travel downstream in 30 minutes ?
Correct
Explanation:
Speed of the current = x/5kmph
Upstream speed = 4x/5
4x/5 *40/60 = 12 km
X = 12*5*60/40*4 =3600/40*4 = 22.5kmph
Speed of the current = 22.5/5 = 4.5kmph
Downstream speed = 22.5+4.5 = 27kmph
Distance travelled in 30min = 30/60*27 = 13.5kmIncorrect
Explanation:
Speed of the current = x/5kmph
Upstream speed = 4x/5
4x/5 *40/60 = 12 km
X = 12*5*60/40*4 =3600/40*4 = 22.5kmph
Speed of the current = 22.5/5 = 4.5kmph
Downstream speed = 22.5+4.5 = 27kmph
Distance travelled in 30min = 30/60*27 = 13.5km
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