Question

Anyone please help me​

Answer 1

(a) 6

(b) 14

Explanation:

Answer 2

Answer: (a) 6

(b) 14

Explanation:

Let a represent the unknown digit for Chinese --> 70 + a

Let b represent the unknown digit for Mathematics --> 80 + b

Total scores ÷ Total number of tests = Average

`(78 + (70 + a) + (80 + b) + 62)/(4)=76\\\\\\(290 + a + b)/(4)=76\\\\\\290 + a + b=304\\\\\\a+b=14`

The two digits must add up to 14.

The only options are: (9,5), (8,6), (7,7), (6,8), and (5,9),

Mathematics - Chinese

(9, 5) 89 - 75 = 14 LARGEST Difference

(8, 6) 88 - 76 = 12

(7, 7) 87 - 77 = 10

(6, 8) 86 - 78 = 8

(5, 9) 85 - 79 = 6 SMALLEST Difference