Multiple choice

Natasha has scored 92, 93, 96, 98 and 91 marks in her five tests. How much marks should she score in the next test so that her average in 6 tests is 95?

  1. 97

  2. 98

  3. 99

  4. 100

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Sum of 6 tests = 95 * 6 = 570. Sum of first 5 tests = 92+93+96+98+91 = 470. Required score = 570 - 470 = 100.

AI explanation

The total required score for Natasha to average 95 across six tests is 6 multiplied by 95, which equals 570. Her current total score from the five tests is the sum of 92, 93, 96, 98, and 91, which equals 470. The score she needs on the sixth test is the difference between the required total and her current total: 570 minus 470 equals 100.