Question

maths exercise 1.1 of class 8​

Answer 1

Hey

$let \: x \: be \: the \: required \: number \\ \\ acc. \: to \: question \\ x - \frac{5}{2} \times 8 = 3x \\ \\ = > x - \frac{40}{2} = 3x \\ \\ = > x - 20 = 3x \\ \\ = > 2x = 20 = > x = 10$

Answer 2

mark as brainliest

answer is 4