Math, asked by shreyagupta6006, 1 year ago

वर्गों 90–120 और 120–150 के वर्ग चिन्हों का योग है:
(A) 210 (B) 220
(C) 240 (D) 270

Answers

Answered by knjroopa
2

Step-by-step explanation:

Given वर्गों 90–120 और 120–150 के वर्ग चिन्हों का योग है:

  • Now we need to find the sum of mark of the class.
  • Now the mark of the class 90 – 120 will be
  • Upper class limit = 120 and lower class limit = 90
  • Now mark of the class is given by upper limit + lower limit / 2
  •                                  = 120 + 90 / 2
  •                                  = 210 / 2
  •                                  = 105
  • Similarly for the class interval 120 – 150 we get
  • upper class limit = 150 and lower class limit = 120
  •         The mark of class 120 – 150 = upper limit + lower limit / 2
  •                                   = 150 + 120 / 2
  •                                   = 270 / 2
  •                                   = 135
  • Therefore sum of the two will be 135 + 105 = 240

Reference link will be

https://brainly.in/question/14080344

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