Solve the question on your notebook and check it by clicking (Answer and Explanation) below question.
Simplify
a × b = 2a - 3b + ab, then 3 × 5 + 5 × 3 = ?
= 2(3)-3(5)+(3 × 5) + 2(5)-3(3)+(5 × 3)
= 6-15+15+10-9+15 = 31-9 = 22
3034-(1002รท20.04)=?
Value of
The number of girls in a class are 7 times the number of boys, which value can never be the of total students
Let the boys are X, then girls are 7X, total = X+7X = 8X
So it should be multiple of 8, 30 is not a multiple of 8.
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