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Question 1
A man on a motorcycle covers five successive 4 km distance at speed of 10km/h, 20km/h, 25km/h, 40km/h, 50km/h. Its average speed over the distance is:
Question 2
If α and β are the roots of equation 
where α+β=7/2, then find the equation whose roots are -α and -β.
where α+β=7/2, then find the equation whose roots are -α and -β. Question 3
If 
then what is the value of x?
then what is the value of x?Question 4
The sum of three numbers in arithmetic progression is 27 and their product is 405. The numbers are:
Question 5
The sum of a fraction and 3 times its reciprocal is 37/10. What is the fraction?
Question 6
What is the simplified value of 
?
? Question 7
What is the value of 143 + 163 + 183 + ... + 303?
Question 8
In an examination, 93% of students passed and 259 failed. The total number of students appearing at the examination was
Question 9
Manish sold his house and his office at 15% loss and 12% profit respectively. What is the net profit or loss if he bought his house and office for 500,000$ and 250,000$ respectively?
Question 10
A man covered a certain distance at some speed. He had moved 3 km/h faster, he would have taken 40 min less. If he had moved 2 km/h slower, he would have taken 40 min more. The distance (in km) is
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Mar 23SSC & Railway
