Asked by karem
Insert some parentheses in the expression 24 : 4 + 8 : 2 +2 so that the result is:
a) 3 b) 4 c) 5 d) 6
a) 3 b) 4 c) 5 d) 6
Answers
Answered by
Steve
24 : 4 + 8 : 2 +2
Not sure what the ratios are doing there, but if we change to the normal fraction notation,
24/4+8/2+2
= 6+4+2
= 12
24/(4+8)/2+2
= 24/12/2+2
= 2/2+2
= 1+2
= 3
24/4+8/(2+2)
= 6+8/4
= 6+2
= 8
24/(4+8/(2+2))
= 24/(4+8/4)
= 24/(4+2)
= 24/6
= 4
You try the others.
Not sure what the ratios are doing there, but if we change to the normal fraction notation,
24/4+8/2+2
= 6+4+2
= 12
24/(4+8)/2+2
= 24/12/2+2
= 2/2+2
= 1+2
= 3
24/4+8/(2+2)
= 6+8/4
= 6+2
= 8
24/(4+8/(2+2))
= 24/(4+8/4)
= 24/(4+2)
= 24/6
= 4
You try the others.
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