Question 1129372
Let {{{ a }}} = Carol's age now
Let {{{ b }}} = Carol's father's age now
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(1) {{{ b = 4a }}}
(2) {{{ b - a = 24 }}}
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(2) {{{ 4a - a = 24 }}}
(2) {{{ 3a = 24 }}}
(2) {{{ a = 8 }}}
and
{{{ b = 4*8 }}}
{{{ b = 32 }}}
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Carol is 8
Her father is 32
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check:
(2) {{{ 32 - 8 = 24 }}}
(2) {{{ 24 = 24 }}}
OK