11.A vendor purchases binder clips at 12 for rs60.How many clips should he sell for rs60 to earn a profit of 20%?
a. 5 b.8 c.6 d.10

12.I was facing west.I turned 125 degree in the clockwise direction and 10degree in the anticlockwise direction.Which direction am i facing now?
a. north-west b.east c. borth d. north-east

13.What is the value of(a,y) in (13^-20-a*13^y)=168*13^-22?
a.(1,2) b.(0,1) c.-1,2) c.(-1,22) d.(1,-22)

• 11. D
  Profit of 20% means he should sell the 12 clips for 72 Rs
  so for 60 Rs he should sell 10 clips
  
  12.D
• 9 years agoHelpfull: Yes(12) No(6)
• 13. (13^-20-a*13^y)=168*13^-22
  13^-20 - 168*13^-22 = a * 13^y
  13^-22 (13^2 - 168) = a * 13^y
  Thus,
  a = 13^2 -168 = 169 - 168 = 1.
  y = -22 (substitute powers of 13)
  Therefore, a=1, y=-22.
• 9 years agoHelpfull: Yes(8) No(0)
• 13.D
  (1/13^20+1/13^22)=(5.26)
• 9 years agoHelpfull: Yes(4) No(1)
• 11 A)Given:
  CP of 12 clips is 60
  SP of 12 clips = (1+20/100)*60
  =(120/100)*60
  = 72
  HENCE SP OF 12 CLIPS=72
  THEN SP of 1 clip= 72/12 = 6 ( this is SP OF ONE CLIP with 20% profit)
  Now if he sells 10 clips SP WILL BE 60 ie)) 6*10
  HENCE ANS is d
  
• 8 years agoHelpfull: Yes(2) No(0)
• 11 ans:b
  12 ans: d
• 9 years agoHelpfull: Yes(1) No(1)
• 11.d
  12.d
  13.c
• 9 years agoHelpfull: Yes(1) No(2)
• 11. D
  12. D
  13. D
  
• 9 years agoHelpfull: Yes(1) No(0)
• 11) Vendor has to spend 72/- for each clip (by considering 20% of 60 rs). For 12 clips he spent 720(60rs*12),
  now the vendor has to spend 72/- such that he has to spent total of 720/- then he has to buy
  10 clips to satisfy the equation!!
  ans:D
  
• 8 years agoHelpfull: Yes(1) No(0)
• 11. d
  12.d
  from west to 115 (15-10) degrees is north east
  13. d
  (13^-20-a*13^y)=168*13^-22
  by solving this we get 1= a(13^(y+22))
  hence by opt verification a=1 and y= -22
• 9 years agoHelpfull: Yes(0) No(0)
• 11 . ANS=5
  12 clips bought for 60 rupees
  No of clips that must be sold for 60 rupees to get 20% profit = ?
  120% of x =60 . x = 100*60/120 = 50
  No of clips that must be sold = 50/(price of 1 clip) = 50/5=10
  
  12. ANS=North-East
  N
  W E
  S
  Clockwise degree - Anti-clockwise degree 115%
  90% of W = N
  115-90=25 degree . 25 degree of N will lie between N and E = North-East
  
  13.ANS : d(1,-22)
  (13^-20-a*13^y)=168*13^-22
  Divide the LHS and RHS by 13^-22
  13^2-a*13^(y+22) =168
  168 can be expressed as 13^2 - 1
  13^2-a*13^(y+22) =13^2 - 1
  a*13^(y+22) =1
  Now look at options and substitute .. Its easy for y=-22 . 13^0=1 a also = 1
  So option d
  
• 9 years agoHelpfull: Yes(0) No(0)
• 11) 12 -> 60
  1 -> 5
  SP = 60
  Profit = 20%
  Sp = p% of Cp
  60 = 120/ 100 *x
  x= 50
  So , the number of clips he should sell is 50/5 = 10
• 8 years agoHelpfull: Yes(0) No(0)
• Totally we have 12 clips...So (x÷12)×100=20...now x=6...so for each 6 means 72 rs(i.e 6×12=72)...but in ques they asked for 60rs..So the Ans is 10 clips(i.e 10×6=60)
• 8 years agoHelpfull: Yes(0) No(0)