SSC CGL Tier 1 :: QA Test 62
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# SSC CGL Tier 1 Quantitative Aptitude Questions and Answers Online Test 62

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Exercise

 "The secret to creativity is knowing how to hide your sources." - Albert Einstein
1 .
If x = 3 + $2\sqrt 2$, then the value of ($\sqrt x -$1 \over \sqrt x$) is  1 2$2\sqrt 23\sqrt 3$ View Answer Workspace Report Discuss in Forum 2 . If then the value of x is $1 \over 73 \over 7$1$8 \over 7$ View Answer Workspace Report Discuss in Forum 3 . The value of$( x - y )^3 + ( y- z )^3 + ( z - x )^3 \over 9(x - y)(y- z)(z - x)$is equal to  0$1 \over 91 \over 3$1  View Answer Workspace Report Discuss in Forum 4 . The value of$3 \sqrt 2 \over \sqrt 6 - \sqrt 3$-$ \sqrt 3 \over \sqrt 6 - \sqrt 2$-$ \sqrt 6 \over \sqrt 8 - \sqrt 12$$\sqrt 3$-$\sqrt 2\sqrt 3$+$\sqrt 2$5$\sqrt 3$1  View Answer Workspace Report Discuss in Forum 5 . A man can row 9$1\over 3$kmph in still water and finds that it takes him thrice as much time to row upstream as to row downstream the same distance in the river. What is the speed of the stream?  4$2 \over 3$km/hr 7$3 \over 2$km/hr 2$3 \over 4$km/hr 6$1 \over 3\$ km/hr
6 .
The traffic lights at three different road crossings change every 21 seconds, 63 seconds and 105 seconds respectively. If they all change simultaneously at 9 : 15 : 00 AM, at what time will they again change simultaneously?
 9 : 20 : 15 AM 8 : 20 : 30 AM 9 : 17 : 36 AM 9 : 18 : 15 AM
7 .
In an examination a student scores 7 marks for every correct answer and loses 1 mark for every wrong answer. If he attempts all 150 questions and scores 400 marks, the number of questions he attempts incorrectly is
 70 40 50 60
8 .
A and B can do a piece of work individually in 9 and 18 days respectively. Both started working but A stopped 3 days before finishing. In how many days will the work be completed?
 13 days 8 days 6 days 5 days