# Quantitative Aptitude – Mixed Questions Set 8

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Welcome to Online Quantitative Aptitude Section in AffairsCloud.com. Here we are creating question sample in Quadratic Equations and Miscellaneous based on prelim pattern, which is common for SBI,IBPS, RBI,LIC, NICL and other competitive exams.

1. Q(1-5) In the following questions two equations numbered I & II are given. You have to solve both equations and mark one of the option given below
(√(1729+12*13*75+2197)/(√625+144-600)= √(144+169+312) / ?
1.12
2.13
3.25
4.28
5.None
Explanation :
Solution:
25/13 = 25/?
? = 13

2. 0.04*0.5*0.2*√25 + ³√0.008*0.5*0.7+2.14-1.83 = ?/10
1.6
2.7
3.8
4.9
5.None
Explanation :
0.02+0.07+2.54-1.83=0.8

3. (909.01*111+ 711.01*222.01+555*333)/25 =?³
1.22
2.24
3.26
4.28
5.None
Explanation :
Solution:
4000*111/25 = 17760= ?³
? = 26

4. (√6241 – √6085)½ * 313 + 87 = ?²*16
1.4
2.5
3.6
4.7
5.8
Explanation :
Solution:
313+87 = 400 = ?² *16
? = 5

5. 38.07% of 3996 + (49)² – 33.01% of 4568 + 7/11 of 2958 = ?*5
1.859
2.863
3.869
4.871
5.None
Explanation :
Solution:
1520+ 2401-1508+1882= 4295= ?*5
?= 859

6. A seller marks price on Mobile such that he can make 35% profit by giving 10% discount. However a customer bargained and availed 16% discount. Then what is the new profit percentage of seller?
1.24%
2.26%
3.28%
4.32%
5.Cannot be determined
Explanation :
SP = CP*135/100
SP = MP*90/100
CP = MP*90/135
Customer SP = MP*84/100
MP*84/100 = MP*90/135*(100+y)/100
100+Y = 126
Y = 26%

7. In an examination, ratio of number of students who passed to number of students who failed is 5:2. If 10 more students appeared for the exam then number of students failed was 5 more than earlier, then new ratio of number of students passed to number of students failed is 7:3.Then total number of students earlier is?
1.120
2.140
3.160
4.180
5.Cannot be determined
Explanation :
5x+y/2x+10-y = 7:3
and 2x+10-y- 2x =5
y =5
then x =20
total = (5+2)*20 = 140

8. The probability that Vijay will join IIT is 2/7 and that he will join NIT is 3/5.Find that probability that he will join either IIT or NIT?
1.4/35
2.6/35
3.29/35
4.31/35
5.None
Explanation :
2/7+3/5 = 31/35

9. Q(9-10). Each question below is followed by statements I and II. You have to determine whether thedata given in the statement is sufficient for answering the questions or not.
a^n + a^n + a^n + a^n + a^n + a^n = a^n+1 then what is the value of n?
I. a^n = 25√5
II. a = 5
1.The data in statement I alone are sufficient to answer the question, while data in statement II are not sufficient to answer the question
2.The data in statement II alone are sufficient to answer the question, while data in statement I are not sufficient to answer the question
3.The data either in Statement I alone or Statement II alone are sufficient to answer the question
4.The data given in Both Statements I & II are not sufficient to answer the question
5.The data given in both statements I & II together are necessary to answer the question
Answer – 1.The data in statement I alone are sufficient to answer the question, while data in statement II are not sufficient to answer the question
Explanation :
5a^n =a^n .a
a=5

10. What is the area of the rectangle?
I. The perimeter of rectangle is 156 cm
II. The diagonal of rectangle is √3060 cm
1.The data in statement I alone are sufficient to answer the question, while data in statement II are not sufficient to answer the question
2.The data in statement II alone are sufficient to answer the question, while data in statement I are not sufficient to answer the question
3.The data either in Statement I alone or Statement II alone are sufficient to answer the question
4.The data given in Both Statements I & II are not sufficient to answer the question
5.The data given in both statements I & II together are necessary to answer the question
Answer – 5.The data given in both statements I & II together are necessary to answer the question
Explanation :
l+b = 78
l² + b² = 3060

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