21) If 19 and 1140 are the respective HCF and LCM of two numbers, which are greater than 19
then what will be the possible number of such pair?


22)IN a lawn,grass grows equally thick and uniform rate every day.It takes 24days for 70 cows
to graze and 60 days for 30 cows.How many cows are required to graze lawn in 96 days.
ANS:
------


23)FOR A POETRY CONCERT OF 30 MINS A POET TAKES 1 HOUR FOR WRITING THE
POEM AND 6 HOURS TO REHEARSAL.HOW MUCH TIME WILL TAKE THE POET FOR
90 HOUR CONCERT?


24)company A rented a truck $1000 per month. company B purchased the same type of truck for
$35000.in addition company B paid $120 monthly maintenance charges.what is relative cost to
the competing company for this type of truck after 6 years of operation

26)in a library there are 5 computer cluster open for public use.each computer cluster consist 33
laptop.in first week 75 laptop are used.in second week 155 laptop used ,in third week 30 laptop
and in fourth week 160 laptop used.what fraction of library computer are in used in month?
a)3/5
b)2/7
c)2/3
d)1/14
e)1/4
ANS:
--------


27)a container of production line solvent is mixed at 22% strength and another is mixed at 53%
strength.to obtain 12 liter of a mixture that is 25% strength,how many liter should be used from
the container that is mixed at 53% strength?
a)4 liters
b)1 5/31liters
c)2 16/25 liters
d)5 35/53 liters
e)4/59


28)a company decided to install a fountain within it main entrance lobby.if fountain is to be 148
cm wide 297 long and 91 cm deep,how much water would be required to feel the fountain to a
depth of 69cm?(1liter=1000 cubic centimeters)
a)4000
b)5140
c)967
d)5360
e)3033


29) In a certain company 20% of the men and 40% of the women
attended the annual company picnic.If 35% of all the employees
are men .What % of all the employee went to the picnic?


30) A company instaled 36 punching machines at the begining of
the year.In the spring they instaled 9 additional m/c's
and th
(Ans is 9)check


31) company has offices in 2 buildings.53% of the copying machines in the 1st building and 48%
of the copying machines in the 2nd building received preventive maintanance last month. if 42%
of the company copying machines are in the 1st building then what % of all the copying
machines received preventive maintanance last month?


32)Two solutions of 90% and 97% purity are mixed resulting in 21 litres of mixture of 94%
purity. How much is the quantity of the first solution in the resulting mixture?


33)8 chairs are numbered from 1 to 8. Two women first choose two chairs from those marked 1
to 4 and 3 men selects 3 chairs from the remaining. Find the number of possible arrangements


34)A thermal chimney of circular cross section has outer and inner radii of 3m and 2m
respectively. Find the cost of cement finishing for the inner and outer surface at Rs20 per
sq.meter, if the height of the chimney is 56m.


35)A set of 7 pens, 9 erasers and 11 sharpeners costs Rs 79 and 2 pens, 5 erasers and 8
sharpeners cost Rs 42. Find the total cost of one sharpeners, one eraser and one pen.


36)A father of 6 children takes 2 of his children at a time to a circus as often as he can, without
taking the same pair of children together more than once. How many times does the father go to
the circus?


37)A person can buy 50 cds with $135 and 15 dvds with $100 nikitha has a budjet of $1680 for
cds & budget of $150 for dvds
How many cds & dvds in total can she buy?


38)A women uses 150 clips to pin 20 pages. How many clips will be required to pin 230 pages??


39)A jar contains 2 red, 3 blue, and 4 green marbles. Niki draws one marble from the jar, and
then Tom draws a marble. What is the probability that Niki will draw a green marble and Tom
will draw a blue marble?


40)There are 9 popsicles: 3 orange, 3 cherry, 3 grape. There are 4 children. What is the
probability that all 4 children will get the flavor of their choice?


41)Three people each toss a penny at the same time. What is the probability that two people get
the same side of the penny and the other person gets the opposite side?

• 22) Let initially X grass was present there,and it is increasing by Y grass per day, then for the first condition We get,
  X+24*y = 24*70 ----(1)
  For the 2nd condition, we have,
  X+60*Y = 60*30----(2) Now, On solving equation (1) and (2), we get
  X = 1600 and
  Y = 10 /3
  Third Condition,
  X+96*Y = 96 *N -----(3) [N = Number of Cows required]
  Putting the values of X and Y in equation (3), We get
  N = 20.
• 8 years agoHelpfull: Yes(16) No(0)
• 38) 150 clips ------> 20pages
  ? ------->230pages
  230/20 =11.5
  11.5*150 = 1725.0
• 8 years agoHelpfull: Yes(7) No(2)
• 23) 30 min -> 1hr + 6hr =7hrs
  90 min-> 7*3 = 21 hrs
  so 21*60 = 1260min
• 8 years agoHelpfull: Yes(5) No(22)
• A's total cost to be spent for 6 years= 6*12*1000 = Rs 72,000
  B's total cost + monthly maintenance = 35000+(6*12*120) = Rs 43,640
  Relative cost= 72000-43640
  = Rs. 28,360
• 8 years agoHelpfull: Yes(5) No(0)
• 35. 7P+9E+11s=79 ---1
  2P+5E+8S=42---2
  
  eliminating P.... eq1 *2 - eq2*7 , gives
  17E+34S=136 ----3
  
  
  eliminaing S ....eq1*8-eq2*11, gives
  34P+17E=170 ----4
  
  
  adding eq3 and eq4,
  
  34P+34E+34S=306
  
  
  P+E+S=9
• 8 years agoHelpfull: Yes(5) No(0)
• Q:29 Ans is 33%
  
  Solution Let assume x% of people attend the party
  Out of x 35% is men so, x*35/100=7x/20 men and remaining 13x/20 is women
  Now out of 7x/20 20% men are attend the party so, (7x/20)*(20/100)=7x/100
  Now out of 13x/20 40% women are attend the party so, (13x/20)*(40/100)=13x/50
  
  Total people attend the party: Men+ Women 7x/100+13x/50=33x/100
  % of people attend the party : (33x/100)*(1/x)(100)=33%
  
  ans is 33%
• 8 years agoHelpfull: Yes(4) No(2)
• 33) first women sit in any of four seats = 4 ways
  
  2nd women sit in any of the 3seats = 3 ways
  
  So total = 4*3 = 12 .
  
  Remaining 6 chairs are there then 1 men can sit in any of 6
  
  2nd can sit in any of 5
  
  3rd can sit in any of 4
  
  6*5*4=120
  
  Then total = 120*12 = 1440
• 7 years agoHelpfull: Yes(4) No(1)
• 35) 7p + 9e +11s = 79
  2p + 5e +8s =42
  total =9p +14e +19s =121
  so p=4,e=2,s=3
  9(4)+14(2}+19(3)=121
• 8 years agoHelpfull: Yes(3) No(2)
• 21) product of HCF and LCM=product of the number
  then, product of the number=19*1140
  Let 19a and 19b be the numbers.
  19a*19b= 19*1140
  ab= 19*1140/19*19=60
  if ab=60 then,(a,b)=(1,60),(2,30),(3,20),(4,15),(5,12)&(6,10)
  since a and b are co-prime then,(a,b)=(1,60),(4,15),(5,12)
  Hence number of such pair = 3a
• 7 years agoHelpfull: Yes(3) No(3)
• 28) 3033 lt
• 8 years agoHelpfull: Yes(2) No(0)
• 36) answer is 15. 5+4+3+2+1
  5 possibilities of couple with the first child
  4 for the second
  3 for the next
  as you remove the couple already used
• 7 years agoHelpfull: Yes(2) No(1)
• 24) 28,360
• 8 years agoHelpfull: Yes(1) No(6)
• 38) 150 clips-----------20 pages
  ?---------------------230 pages
  230*150/20=1725.0
• 8 years agoHelpfull: Yes(1) No(0)
• 36) 5! = 120
• 8 years agoHelpfull: Yes(1) No(6)
• 27) 53-25=28
  25-22=3
  so the liters to be used from the container that is mixed at 53% strength is (12*3)/31=36/31=1 5/31 litres
  Option B.
• 7 years agoHelpfull: Yes(1) No(0)
• 37 A) Number of CDS she can buy with 1680 RS is =1680×50/135=622.25 or 622CDS
  Number of DVDS she can buy with 150 RS =
  150×15/100=22.5 or 22 DVDS.
• 5 years agoHelpfull: Yes(1) No(0)
• 35) 7pens + 9 erasers + 11shopners =79
• 8 years agoHelpfull: Yes(0) No(7)
• plz anyone tell me corect ans for 23rd
• 8 years agoHelpfull: Yes(0) No(0)
• Please anyone send me english previous paper and bussiness communication papers to my mail shindemd111@gmail.com
• 8 years agoHelpfull: Yes(0) No(0)
• Please anyone send me english previous paper and bussiness communication papers to my mail saisreepath@gmail.com
• 7 years agoHelpfull: Yes(0) No(0)
• 28.
  
  148*297*69/1000
  =3033 liters
• 7 years agoHelpfull: Yes(0) No(0)
• 41) HHH,HHT,HTH,HTT,THH,THT,TTH,TTT
  sample space=8
  6/8
  3/4
• 7 years agoHelpfull: Yes(0) No(0)
• Plz give me the answer for 26,39 and 40
• 7 years agoHelpfull: Yes(0) No(0)
• 21.) hcf *LCM=multiple of number =a*b;
  bcoz hcf number is common in both number;
  a=19*x; b=19*y;
  19*1140=19*19*x*y;
  x*y=60;
  as both number is >19;
  so
  (19*5,19*12) or (19*3,19*20) is possible
  multiply above both possiblity by 19 to get the final numbers.
• 6 years agoHelpfull: Yes(0) No(0)
• 1/4
  Total Case : 8
  Possibility of all three same : 2
  Than : - 2/8 = 1/4
• 5 years agoHelpfull: Yes(0) No(0)
• 39. total marbels in a jar is 2+3+4=9 marbels
  for nikki probability will be = (1 green marbel from 4 green marbels)/(1 marbel from 9 marbels)=4c1/9c1=4/9.
  for tom now marbels become 8 so probability will be =3c1/8c1=3/8.
  now total probability = 4/9+3/8
• 5 years agoHelpfull: Yes(0) No(1)