Saved Bookmarks
| 1. |
To make a ratio of average score of Rishi to Kartik of 87.5%, how much more marks need to add in total score of Kartik?1). 45.62). 12.63). 634). 49 |
|
Answer» Average of RISHI/Average of Kartik = 87.55 = 7/8 For the average of Rishi, ⇒ Total SCORE of Rishi = 87 + 82 + 72 + 90 + 89 = 420 ⇒ Average marks of Rishi = 420/5 = 84% From the ratio, ⇒ Average of Rishi/Average of Kartik = 7/8 ⇒ (84 × 8)/7 = Average of Kartik ⇒ Average of Kartik = 96 For 96 average, Total score of kartik = 96 × 5 = 480 ⇒ Current total score of Kartik = 90 + 89 + 82 + 80 + 76 = 417 ∴ Difference in Total score = 480 – 417 = 63 |
|