- Find out the wrong number in the following series:
15 , 25 , 36 , 49 , 66 , 85 , 110

15256649110Option C

Addition of +10 , + 11 , + 13 , +16 , + 20 , +25

Then +1 , +2 , +3 , + 4 , + 5 - Study the follwing and answer the following:
a)x^2+18x+65=0

b)y^2+12y+35=0x>yxx=y or relationship cannot be establishedx is less than or equal to yx is greater than or equal to yOption C

x= – 5 , -13

y= – 5 , -7 - Study the following and answer the question:
x= (-2)^2 + 111.21 – 20.10 * 11.90

-100-80-110-70None of theseOption B - Three persons X,Y and Z run around a circular stadium and complete one round in 36,24 and 40 seconds respectively.In hoiw many minutes will all the three meet again at starting point?
2 min6 min4 min10 min1 minOption B

LCM of 36,24 and 40=360

Therefore,360/60=6 min - X and Y together can complete an project of data entry in 10 days.X speed is 60% of Y’s speed and total key depression in the project are 804000.What is Y’s speed in key depression per hour if they work for 5 hours a day?
11050100501205013000None of theseOption B

Ratio =3:5

Total wok done by Y=(5/8)*804000=502500

Tota working hours by Y=10*5=50 hours

Y’s speed=(502500/50)=10050 - The average age of 12 persons is 16.75 years.When a new person joins them,the average age is decresed by 0.75 years.Then find the age of new person?
7 years8 years9 years10 yearsNone of theseOption A

Age of new person=13*(16.75-0.75) - Study the following and answer the questions:
7 , 8 , 17 , 52 , 209 , ?

1046120013051100None of theseOption A

7*1+1=8

8*2++1=17

17*3+1=52 - 2 , 9, 35 , 98 , 222 , ?
400437420450None of theseOption B

2^3-1

3^3-1 - a)x^2 – 31x +198 = 0

b)[email protected]+12=0xx>yx=y or relationship cannot be establishedx is greater than or equal to yx is less than or equal to yOption B

x=22 , 9

y = -6 , 2 - a)x^2-6x + 5=0

b)y^2 + y – 342 = 0x>yxx=y or relationship cannot be establishedx is less than or equa to yx is greater than or equa to yOption

x=5 , 1

y =19 , -18