Directions (1-5): Refer to the table given below and answer the given questions.
Table shows the 5 colony and total population and percentage of males, females and children in each colony in year 2016. Some data are missing, find the missing data to answer the given questions.
Note: Don’t treat children as male or female. Treat them separately.
Q1. If the ratio of population of females and children in colony A in year 2016 is 3 : 7, and female in colony A in year 2017 is increased by 20% from that of year 2016. Then find the total number of males and children in colony A in year 2017 so that overall population in year 2017 is same as in year 2016 ?
Q2. If number of children in colony C in year 2016 is 180 and ratio of male and females in colony D in year 2016 is 1 : 2. Then find the difference of males in colony C and colony D?
Q3. If total population of colony B and colony C together in year 2016 is 25% more than the total population of colony A in year 2016 and ratio of total population of colony B and colony C in year 2016 is 2 : 3. Then find the ratio of males in colony B to children in colony C in year 2016 ?
Q4. If ratio of males of colony D in year 2016 to the females in colony A in year 2016 is 2 : 5 and population of children in colony A is increased by 20% in year 2017 from year 2016. Then find the total population of children in year 2017 in colony A ?
Females in colony A = 5x
Let population of children in colony A in 2016 = a%
∴ No. of children in colony A in 2017 =(6a/5) %
From here we cannot find the required answer
Q5. If ratio of total population of colony C to colony E in year 2016 is 5 : 4. Then number of males in colony E in year 2016 is what percent more or less than the number of children in colony C in year 2016 ?
Q6. A starts driving from P to Q at 9 am and B starts driving from Q to P at 10 am B is 50% faster than A. What is the time when they meet if P and Q are 300 km apart and A’s speed is 50 km/h.
Q7. Two persons A and B are standing diametrically opposite on a circular track with a radius of 3.5 units. They start running in an opposite direction on the circular track and their speeds are 4 units/minute and 7 units/minute respectively. On meeting each other they take rest for half a minute and then start running with twice the original speed. In five minutes how many times will they meet ?
Q8. A man works twice as fast as a woman. A woman works twice as fast as a child. If 16 men can complete a job in 12days, how many days would be required for 32 women and 64 boys together to complete the same job?
Q9. Ravi travels 300 km partly by train and partly by car. He takes 4 hours to reach, if he travels 60 km by train and rest by car. He will take 10 minutes more if he were to travel 100 km by train and rest by car. The speed of the train is:
Q10. An alloy contains only zinc and copper. One such alloy weighing 15 gm contains zinc and copper in the ratio of 2 : 3 by weight. If 10 gm of zinc is added then find what amount of copper has to be removed from the alloy such that the final alloy has zinc and copper in the ratio of 4 : 1 by weight?
Directions (11-13): In each of these questions a number series is given only one number is wrong in each series. You have to identify the wrong number.
Q11. 1.375, 1.25, 2.625, 3.875, 6.575, 10.375, 16.875
2.625+1.25=3.875
3.875+2.625=6.5
6.5+3.875=10.375
10.375+6.5=16.875
Q12. 2478, 819, 257, 84, 24, 5
Q13. 199, 176, 195, 180, 190, 184, 187
Directions (14-15): What will come in the place of question mark (?) in the following number series?
Q14. 2, 13, 67, ?, 817, 1639
Q15. 1, 2, 6, 21, ?, 445, 2676
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