FIND THE SUM OF 1/2 + 1/6 + 1/12+ 1/20 + 1/30 + 1/42 + 1/56 + 1/72 + 1/90 + 1/110 + 1/132

A) 7/8

B) 11/12

C) 15/16

D) 17/18

1/2 + 1/6 + 1/12 + 1/20 + 1/30 + 1/42 + 1/56 + 1/72 + 1/90 + 1/110 + 1/132

= (1 - 1/2) + (1/2 - 1/3) + (1/3 - 1/4) + (1/4 - 1/5) + (1/5 - 1/6) + (1/6 - 1/7) + (1/7 - 1/8) + (1/8 - 1/9) + (1/9 - 1/10) + (1/10 - 1/11) + (1/11 - 1/12)

= 1 - 1/2 + 1/2 - 1/3 + 1/3 - 1/4 + 1/4 - 1/5 + 1/5 - 1/6 + 1/6 - 1/7 + 1/7 - 1/8 + 1/8 - 1/9 + 1/9 - 1/10 + 1/10 - 1/11 + 1/11 - 1/12

= 1 - 1/12

= 12/12 - 1/12

= 11/12

  • -1

1/2 + 1/6 + 1/12 + 1/20 + 1/30 + 1/42 + 1/56 + 1/72 + 1/90 + 1/110 + 1/132

= (1 - 1/2) + (1/2 - 1/3) + (1/3 - 1/4) + (1/4 - 1/5) + (1/5 - 1/6) + (1/6 - 1/7) + (1/7 - 1/8) + (1/8 - 1/9) + (1/9 - 1/10) + (1/10 - 1/11) + (1/11 - 1/12)

= 1 - 1/2 + 1/2 - 1/3 + 1/3 - 1/4 + 1/4 - 1/5 + 1/5 - 1/6 + 1/6 - 1/7 + 1/7 - 1/8 + 1/8 - 1/9 + 1/9 - 1/10 + 1/10 - 1/11 + 1/11 - 1/12

= 1 - 1/12

= 12/12 - 1/12

= 11/12

therefore the answer is option B)11/12

  • 5

11/12

  • 3
Un conjunto de n numeros, suman un valorS. Sicada número del conjunto se aumenta 20 unidades, después se multiplica por 5 y posteriormente se disminuyeen 20 unidadesCuálseráel valorde la sumade losnúmerosdespuésde estas operacionesanteriores?
  • -1
= 11/12
  • 4
ans=11/12
 
  • 2
yes 11/12
 
  • 0
11
2
  • -1
11/12
 
  • 4
B)11/12
  • 1
11/12
  • 0
11
12
  • 0
11/12
  • 0
11/12
 
  • 1
The answer of your question is 11/12
  • 0
11/12
  • 0
1/2 + 1/6 + 1/12 + 1/20 + 1/30 + 1/42 + 1/56 + 1/72 + 1/90 + 1/110 + 1/132

= (1 - 1/2) + (1/2 - 1/3) + (1/3 - 1/4) + (1/4 - 1/5) + (1/5 - 1/6) + (1/6 - 1/7) + (1/7 - 1/8) + (1/8 - 1/9) + (1/9 - 1/10) + (1/10 - 1/11) + (1/11 - 1/12)

= 1 - 1/2 + 1/2 - 1/3 + 1/3 - 1/4 + 1/4 - 1/5 + 1/5 - 1/6 + 1/6 - 1/7 + 1/7 - 1/8 + 1/8 - 1/9 + 1/9 - 1/10 + 1/10 - 1/11 + 1/11 - 1/12

= 1 - 1/12

= 12/12 - 1/12

= 11/12

therefore the answer is option B)11/12
  • 0
Yup that is 11/12
  • 1
very easy question and very easy answer of this
  • -1
11/12
  • 0
Please find this answer

  • 0
-1\2 between 2/4
  • 0
Ans is B
  • 0
Please find this answer

  • 1
11/12
  • 0
11/12
  • 0
11/12
  • 0
good
  • 0
Highest common factor
  • 0
Hi how are you
  • 0
which two teams are between 66
  • 0
Don't know
  • 0
08427896
  • 0
The answer is 0.91666667 or B
  • 0
Desending
  • 0
Please find this answer

  • 0
Ui9i
  • 0
prove that 3 upon 5 is a rational number
  • 0
simplify in relational number minus 8 by 15 + 2 by -3
  • 0
847/924
  • 0
9and5
  • 0
First take a LCM of denaminat number next add it
  • 0
oneplus 2 3
  • 0
To tough
  • 0
the answer is 11/2
  • 1

1/2 + 1/6 + 1/12 + 1/20 + 1/30 + 1/42 + 1/56 + 1/72 + 1/90 + 1/110 + 1/132

= (1 - 1/2) + (1/2 - 1/3) + (1/3 - 1/4) + (1/4 - 1/5) + (1/5 - 1/6) + (1/6 - 1/7) + (1/7 - 1/8) + (1/8 - 1/9) + (1/9 - 1/10) + (1/10 - 1/11) + (1/11 - 1/12)

= 1 - 1/2 + 1/2 - 1/3 + 1/3 - 1/4 + 1/4 - 1/5 + 1/5 - 1/6 + 1/6 - 1/7 + 1/7 - 1/8 + 1/8 - 1/9 + 1/9 - 1/10 + 1/10 - 1/11 + 1/11 - 1/12

= 1 - 1/12

= 12/12 - 1/12

= 11/12

  • 0
11/12
  • 0
B)11/12
  • 0
ans is b
 
  • 0
The rational number is in the p/q form where q is not equal to 0
  • 0
11/12 is the correct option
  • 0
What is this
  • 0
1/2-4/8-9/5
  • 0
Irshas Mohd.

  • 0
Hey brother11/2
  • 0
=11/12
  • 0
1/2 + 1/6 + 1/12 + 1/20 + 1/30 + 1/42 + 1/56 + 1/72 + 1/90 + 1/110 + 1/132

= (1 - 1/2) + (1/2 - 1/3) + (1/3 - 1/4) + (1/4 - 1/5) + (1/5 - 1/6) + (1/6 - 1/7) + (1/7 - 1/8) + (1/8 - 1/9) + (1/9 - 1/10) + (1/10 - 1/11) + (1/11 - 1/12)

= 1 - 1/2 + 1/2 - 1/3 + 1/3 - 1/4 + 1/4 - 1/5 + 1/5 - 1/6 + 1/6 - 1/7 + 1/7 - 1/8 + 1/8 - 1/9 + 1/9 - 1/10 + 1/10 - 1/11 + 1/11 - 1/12

= 1 - 1/12

= 12/12 - 1/12

= 11/12

therefore the answer is option B)11/12
  • 0

1/2 + 1/6 + 1/12 + 1/20 + 1/30 + 1/42 + 1/56 + 1/72 + 1/90 + 1/110 + 1/132

= (1 - 1/2) + (1/2 - 1/3) + (1/3 - 1/4) + (1/4 - 1/5) + (1/5 - 1/6) + (1/6 - 1/7) + (1/7 - 1/8) + (1/8 - 1/9) + (1/9 - 1/10) + (1/10 - 1/11) + (1/11 - 1/12)

= 1 - 1/2 + 1/2 - 1/3 + 1/3 - 1/4 + 1/4 - 1/5 + 1/5 - 1/6 + 1/6 - 1/7 + 1/7 - 1/8 + 1/8 - 1/9 + 1/9 - 1/10 + 1/10 - 1/11 + 1/11 - 1/12

= 1 - 1/12

= 12/12 - 1/12

= 11/12

  • 1
A fraction is a number representing a part of a whole while a?rational number?is any?number?that can be expressed as the?quotient?or fraction?p/q?of two?integers, with the?denominator?q?not equal to zero
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:) nice
  • 0
Nahi pata yaar
  • 0
11/12
  • 0
What are you looking for?