A

Admin • 802.91K Points
Coach

Q. The average height of 35 girls in a class was calculated as 160 cm. It was later found that the height of one of the girls in the class was wrongly written as 144 cm, whereas her actual height was 104 cm. What is the actual average height of the girls in the class? ( rounded off to 2 digits after decimal)-

  • (A) 158.54 cm
  • (B) 158.74 cm
  • (C) 159.56 cm
  • (D) 158.86 cm
  • Correct Answer - Option(D)
  • Views: 3
  • Filed under category Math
  • Hashtags:
Explanation by: Admin
Correct sum
= (160 × 35 + 104 - 144) cm
= 5560 cm
∴ Actual average height
= (5560/35)
cm
= 158.857 cm ≈
158.86 cm

You must be Logged in to update hint/solution

Discusssion

Login to discuss.

Be the first to start discuss.