Q1. In how many ways the letters of the word ‘CHEKOSLOVAKIA’ can be arranged such that “SL” always comes together and ‘H’ and ‘I’ at the end places?
Q2. I invited my nine friends on dinner. In how many ways they all can be sat around a circular table such that my best friend Durgesh always sat in front of me?
Q3. The probability of hitting a target by Ravi is 2/3. He fires four times to hit the target. Find the probability that the target will be hit.
Q4. There are some eggs (number of eggs>5) in a basket out of which 20% of total eggs are rotten. Two eggs are picked up at random. The probability of being at least one egg rotten is 17/45. Find the total no. of good eggs in the basket.
Directions (Q6-10): What should come in the place of the question mark (?) in following number series problems?
Q6. 738, 765, 819, 900, 1008, 1143, ?
Q7. ?, 9, 10, 16.5, 35, 90
Q8. 16, 17, 15, 18, 14, ?
Q9. 456, 467, 446, 477, 436, ?
Q10. 9, 15, 27, 51, 99, ?
Directions (11-15): Following graph shows the percentage distribution of number of engineers from seven different cities and the pie-chart shows the percentage distribution of female engineers out of total number of female engineers. Total number of engineers in all the seven cities together is 4800 and the ratio of male to female among them is 5 : 3.
Q11. In how many cities the number of female engineers is more than the average number of female engineers, taking all cities together?
Q12. In which of the following cities is the number of male engineers less than the number of female
Q13. In City A the number of female engineers is what percentage of the number of male engineers?
Q14. What is the difference between the average number of male engineers of cities A, B and C together and the average number of male engineers of City E, F and G together?
Q15. The total number of female engineers in City D is what per cent of the total number of male engineers in City B?
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