Question
553 + 173 - 723 + 201960 is equal to = ?
Answer: Option B
$$\eqalign{
& {\text{Let }}a = 55, \cr
& \,\,\,\,\,\,\,\,\,\,\,b = 17, \cr
& \,\,\,\,\,\,\,\,\,\,\,c = - 72 \cr
& a + b + c \cr
& = 55 + 17 - 72 \cr
& = 0 \cr
& \therefore {a^3} + {b^3} + {c^3} - 3abc = 0 \cr
& \left( {a + b + c} \right) = 0 \cr
& {\text{Answer is }}0. \cr} $$
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$$\eqalign{
& {\text{Let }}a = 55, \cr
& \,\,\,\,\,\,\,\,\,\,\,b = 17, \cr
& \,\,\,\,\,\,\,\,\,\,\,c = - 72 \cr
& a + b + c \cr
& = 55 + 17 - 72 \cr
& = 0 \cr
& \therefore {a^3} + {b^3} + {c^3} - 3abc = 0 \cr
& \left( {a + b + c} \right) = 0 \cr
& {\text{Answer is }}0. \cr} $$
Was this answer helpful ?
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