48, 46, 42, 38, ?

a)32
b)30
c)33
d)34
e)35

• 48-42=6,46-38=8,42-32=10
  so,ans:32
• 13 years agoHelpfull: Yes(16) No(6)
• 48-2=46
  48-6=42
  48-10=38
  48-14=34 so answer is 34
• 10 years agoHelpfull: Yes(10) No(4)
• alternative series 48-42=6
  46-38=8
  then next wl b the diiference should b 10 so 42-10=32
• 13 years agoHelpfull: Yes(2) No(4)
• ans:b
  48-46=2
  46-42=4
  42-38=6
  38- x =8=>x=30
• 9 years agoHelpfull: Yes(2) No(16)
• (48-46)*1=2
  (46-42)*2=8
  (42-38)*3=12
  (38-34)*4=16
  ans=34
• 9 years agoHelpfull: Yes(2) No(1)
• a manufacturing company has 15% cobalt ,25% led and 60% of copper. if 5kg of led is used in a mixture how much copper we need to use
  ans
  25%=5kg
  100%=20kg
  60% of 20 kg= 12kg
  12 kg.....
  
  A man bought some mangoes at Rs12 per dozen and bought the same number of at Rs
  10 per kg. He sold these mangoes at Rs 13 per dozen and gained Rs 160.The total
  number of mangos bought by him are
  Option
  A. 60 dozens
  B. 70 dozens
  C. 80 dozens
  D. 90 dozens
  ans
  let total no of mangoes is 2x..
  then we profit=sp-cp
  160=13*2x-(12x+10x)
  160=4x
  x=40
  hence 2x=80
  so total no are 80dozens
  ===============
  in a bus left side are 15 seats available,3 few seats in right side because in rear
  exit door .Each seat hold 3 people.In addition ,there is a seat back can sit 7 people
  all together .how many people can sit in a bus?
  options:
  a)52 b)49 c)95 d)88 e)66 pls explain
  ans
  Right Side =15 seat
  Left Side =15-3 (3 few seat in right side)= 12 seat
  Total= 15+12= 27
  People can seat in 27 seat= 27*3=81
  People can seat in Last Seat = 7
  Total People can seat= 81+7=88
  Ans= d) 88
  Three numbers A,B,Care in ratio 1:2:3. Their average is 600. If A is increased by
  10% and B is increased by 20%, then to get the average increased by 5%, C will increased by:
  a)90
  b)100
  c)150
  d)180
  ans
  Let be A= x, B=2x, and C=3x.
  (x+2x+3x)/3=600
  this will be x=300
  so, the numbers will be 300,600,900
  new average= 105%of 600= 630
  Let 110% of 300+80% of 600 + y= 630*3
  solve it for y, you will get, y=1080
  so, increase in C= 1080-900 =180 ans
  =========================
  A and B together can complete a work in 12 days. A alone can complete it in 20 days.
  If B does the work only for half a day daily, then in how many days A and B together
  will complete the work?
  A. 10 days B. 11 days
  C. 15 days D. 20 days
  ans
  see ,
  here given that A and B can do the work in 12 days
  so A+B 1 day work = 1/12 unit.................................(1)
  also given that , a alone can finish the work in 20 days
  therefore
  A 1 day work = 1/20 unit........................................(2)
  using 1 and 2
  we get,
  B's 1 day work =1/12 - 1/20
  =1/30..............................(3)
  ---> b can do the complete work in 30 days
  now according to statement
  if b does the work only half a day then it takes double days (i.e. 60) to complete the work
  so now B 1 day work = 1/60.
  also we know
  A 1 day work = 1/20
  now,
  A+B 1 day work = 1/60 + 1/20
  = 4/60
  = 1/15 unit work
  hence ,
  A and B together will complete the work in " 15 DAYS " (answer)
  10 women can complete a work in 7 days and 10 children take 14 days to complete the work.
  How many days will 5 women and 10 children take to complete the work?
  A. 1 B. 3
  C. 5 D. 7
  ans
  5 women's 1 day work=1/14
  ans= 1/14 + 1/14
  = 1/7 units of work
  so 7 days
  ===============================
  15 men take 21 days of 8 hours each to do a piece of work. How many days of 6 hours each
  would 21 women take, if 3 women do as much work as 2 men ?
  ans
  15*21*8=2520 man hrs
  3w=2men,
  1 w=2/3 men,
  6d*21*2/3=2520
  d=30days
  @@@
  formula D = M*D*H/M*H
  
  so Days = 15*21*8/14*6 = 30 Days
  ===========================================
  Q. A certain number of bullets were shared by 3 people equally.Each of them fired 4 bullets
  and the sum of the remaining bullets was equal to the initial share each had got. What was
  the initial number of bullets?
  Ans
  lets each one got x bullets .
  so total no of bullets= 3x.
  a/c to question each person used 4 bullets each one has remains with x-4 bullets.
  so (x-4)3=x.
  x=6.
  so total no of bullets =3x =3*6 =18
  60 litres of diesel is required to travel 600 km using a 800 cc engine.
  If the volume of diesel required to cover a distance varies directly as
  the capacity of the engine, then how many litres of diesel is required to
  travel 800 kms using 1200 cc engine?
  Ans
  let keep 800 cc constant and calculate amount of diesel for 800 kms.
  800*60/600=80 liters.
  Now, calculate diesel required for new distance i.e 800 km,
  80*1200/800=120 liters.
  If a man walks at rate of 5 kmph, he misses a train by 7 minutes. However, if
  he walks at rate of 6 kmph,he reaches the station 5 minutes before the arrival
  of train. Find the distance covered by him to reach the station. [IET] 1)8 km
  2)6.5 km 3)6 km 4)7 km
  Ans
  guys there is a simple frmula for such kind of questions where time interval matters
  (S1*S2)/(S2-S1)* time interval
  for example
  (6*5)(6-5)*(12/60)
  so ans will be 6km .
  ==============================
  Prints a page 64 pg per min .If the printed for 3 hours except 10 min.Where there
  was an paper jam,how many page did it print
  Options:
  a)11,700 b)2860 c)11,684 d)12,140 e)10,600
  a person travels from his house to office from 11:10am to 11:50 am and covers a distence
  of 13.4km. find the average speed of the person.
  Ans
  time = 11:10 am to 11:50 am = 40 min = 40/60 =2/3 hr
  distance = 13.4 km
  avg speed = 13.4 /2/3 = 20.3 km/hr
  A company has offices in two different buildings. 50% of the copying machines in the first building and 28% of the copying machines in the second building received preventive maintenance last
  month. If 87% of the company’s copying machines are in the first building, what percent of all thecopying machines received preventive maintenance last month?
  Ans
  50% of 87 machines is 50*87/100=43.5 and
  28% of 13 machines is 13*28/100=3.64,
  So
  43.5+3.64 =47.14
  A company organzied a help desk.there have been done 24 hrs work on software,17 hrs
  on help user nd 40% on other services.find the total no. of hrs have been worked on
  that day?
  Ans
  let total no of hrs = x
  they have done 24+17=41
  40% of x is 40/100=2/5
  x=41+2x/5
  x=68.3
  A company rented a machine for Rs.700/- a month. Five years later the treasurer calculated
  that if the company had purchased the machine and paid Rs.100/- monthly maintenance charge,
  the company would have saved Rs.2000/-. What was the purchase price of the machine?
  Ans
  Let the price of the machine = x rupee
  5 year maintenance charge = 100*60 = 6000
  so total investment = x+6000
  now total rental charges for five year = 700*60 = 42000
  so according to give
• 9 years agoHelpfull: Yes(1) No(0)
• 30 the difference between two consecutive numbers goes on incresing by 2
• 9 years agoHelpfull: Yes(0) No(0)