Question

B increased by 250% compared to 2b decreased by 50%

Answer 1

$a decreased by 25% and $1.2a decreased by 40%

$a decreased by 25% = 0.75a

1.2a decreased by 40% = 0.6*1.2a = 0.72a

2) $b increased by 250% and $2b increased by 50%

$b increased by 250% = 2.5b

$2b increased by 50% = 1.5*2b = 3b

Answer 2

b increased by 250% is equal to 2b decreased by 50%

$b increased by 250% > $2b increased by 50%