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Question 1 of 10
1. Question
1 pointsCategory: Quantitative Aptitude1, 5, 18, 67, 260, ?
Correct
Explanation:
4^{0} + 0, 4^{1} + 1, 4^{2} + 2, 4^{3} + 3, 4^{4} + 4Incorrect
Explanation:
4^{0} + 0, 4^{1} + 1, 4^{2} + 2, 4^{3} + 3, 4^{4} + 4 
Question 2 of 10
2. Question
1 pointsCategory: Quantitative Aptitude2, 8, 19, 40, 76, ?
Correct
Explanation:
Double difference series
82 = 6, 198 = 11, 4019 = 21, 7640 = 36
116 = 5, 2111 = 10, 3621 = 15
So next number = 20 + 36+76Incorrect
Explanation:
Double difference series
82 = 6, 198 = 11, 4019 = 21, 7640 = 36
116 = 5, 2111 = 10, 3621 = 15
So next number = 20 + 36+76 
Question 3 of 10
3. Question
1 pointsCategory: Quantitative Aptitude9, 4, 3, 3, 4, ?
Correct
Explanation:
9*0.5 – 0.5, 4*1 – 1, 3*1.5 – 1.5, 3*2 – 2, 4*2.5 – 2.5,…Incorrect
Explanation:
9*0.5 – 0.5, 4*1 – 1, 3*1.5 – 1.5, 3*2 – 2, 4*2.5 – 2.5,… 
Question 4 of 10
4. Question
1 pointsCategory: Quantitative Aptitude2, 12, 30, 56, 90, ?
Correct
Explanation:
1^{2}+1, 3^{2}+3, 5^{2}+5, 7^{2}+7, 9^{2}+9, 11^{2}+11,…Incorrect
Explanation:
1^{2}+1, 3^{2}+3, 5^{2}+5, 7^{2}+7, 9^{2}+9, 11^{2}+11,… 
Question 5 of 10
5. Question
1 pointsCategory: Quantitative Aptitude11, 10, 17, 54, 255, ?
Correct
Explanation:
11*2 – 12, 10*3 – 13, 17*4 – 14, 54*5 – 15,Incorrect
Explanation:
11*2 – 12, 10*3 – 13, 17*4 – 14, 54*5 – 15, 
Question 6 of 10
6. Question
1 pointsCategory: Quantitative AptitudeRs 420 was divided between three peoples – A, B, and C. If each of them had been given Rs. 18 less than the actual amount given to them, their shares would become in the ratio of 11 : 18 : 32. Find the actual ratio of their shares respectively.
Correct
Explanation:
(11x+18) + (18x+18) + (32x+18) = 420
61x = 366
So x = 6
So actual ratio is 11x+18 : 18x+18 : 32x+18
Put value of xIncorrect
Explanation:
(11x+18) + (18x+18) + (32x+18) = 420
61x = 366
So x = 6
So actual ratio is 11x+18 : 18x+18 : 32x+18
Put value of x 
Question 7 of 10
7. Question
1 pointsCategory: Quantitative AptitudeAn item is sold at a certain selling price. Had the same item been sold at 2/3rd of its actual selling price a loss of 20% is incurred. Find the actual profit made.
Correct
Explanation:
SP = x
CP = y
New SP = 2x/3
So 20 = (y – 2x/3)/y * 100
We have only one equation with 2 variables.Incorrect
Explanation:
SP = x
CP = y
New SP = 2x/3
So 20 = (y – 2x/3)/y * 100
We have only one equation with 2 variables. 
Question 8 of 10
8. Question
1 pointsCategory: Quantitative AptitudeA bag contains 5 blue balls, 3 green balls and 2 white balls. If three balls are chosen at random, what is the probability that the three balls are of same color?
Correct
Explanation:
Case1: all blue
^{5}C_{3}/^{10}C_{3} = 1/12
Case2: all green
^{3}C_{3}/^{10}C_{3} = 1/120
Case3: all white
This case cannot happen because only 2 white balls are there,
Add both casesIncorrect
Explanation:
Case1: all blue
^{5}C_{3}/^{10}C_{3} = 1/12
Case2: all green
^{3}C_{3}/^{10}C_{3} = 1/120
Case3: all white
This case cannot happen because only 2 white balls are there,
Add both cases 
Question 9 of 10
9. Question
1 pointsCategory: Quantitative AptitudeThe sum of three consecutive odd numbers and three consecutive even numbers together is 177. Also, the smallest odd number is 9 less than the smallest even number. What is the sum of the largest odd number and the largest even number?
Correct
Explanation:
Let smallest odd number is x
So x, x+2, x+4 are odd numbers
And even are x+9, x+11, x+13
So x + x+2 + x+4 + x+9 + x+11 + x+13 = 177
Solve, x = 23
So ans = x+4 + x+13 = 2x+17Incorrect
Explanation:
Let smallest odd number is x
So x, x+2, x+4 are odd numbers
And even are x+9, x+11, x+13
So x + x+2 + x+4 + x+9 + x+11 + x+13 = 177
Solve, x = 23
So ans = x+4 + x+13 = 2x+17 
Question 10 of 10
10. Question
1 pointsCategory: Quantitative AptitudeB and C together can complete a piece of work in the same time in which A can alone do it. If C alone can complete the work in 50 days and A and B together can do it in 10 days, then find the number of days in which B alone could do it in.
Correct
Explanation:
Let B+C in x days, then A in x days
(1/A + 1/B) = 1/10
So (1/x + 1/B) = 1/10
AND
(1/B + 1/C) = 1/x
So (1/B + 1/50) = 1/x
Solve both equations
B in 25 daysIncorrect
Explanation:
Let B+C in x days, then A in x days
(1/A + 1/B) = 1/10
So (1/x + 1/B) = 1/10
AND
(1/B + 1/C) = 1/x
So (1/B + 1/50) = 1/x
Solve both equations
B in 25 days
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