Question

a) 30 : {175 :[355 - (135 + 37 . 5)]}

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Answer 1

\(30\div\left\{175\div\left[355-\left(135+37.5\right)\right]\right\}\)

\(=\)\(30\div\left\{175\div\left[355-\left(135+185\right)\right]\right\}\)

\(=\)\(30\div\left\{175\div\left[355-320\right]\right\}\)

\(=\)\(30\div\left\{175\div35\right\}\)

\(=\)\(30\div5\)

\(=\)\(6\)

Answer 2

=30:{175:[355-(135+185)]}

=30:{175:[355-320]}

=30:{175:35}

=30:5

=6

Answer 3

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