Question 1027076
Let {{{ s }}} = the speed of bird B
{{{ s }}} = the speed of bird A
{{{ s + 4s = 190 }}} mi/hr
{{{ 5s = 190 }}}
{{{ s = 38 }}}
{{{ 4s = 152 }}}
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The slowest bird's maximum speed  is 38 mi/hr
The fastest bird's maximum speed is 152 mi/hr
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check:
{{{ 38 + 152 = 190 }}}
{{{ 190 = 190 }}}
OK