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19 May 2021, 07:30
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D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
25%
(medium)
Question Stats:
81% (01:37) correct
19%
(01:32)
wrong
based on 48
sessions
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A certain electronic circuit is produced in seven stages. The cumulative expenditure on each circuit, in cents, after completing production stage n, is given by the formula \(x=\frac{45}{\frac{1}{m}+\frac{4}{2^n}}\) where m is constant and 1≤n≤7. What is the cumulative expenditure on each circuit, in cents, after completing production stage 4?
(1) The cumulative expenditure on each circuit, after completing production stage 7 is 160¢.
(2) The cumulative expenditure on each circuit, after completing production stage 6 is 144¢.
(1) The cumulative expenditure on each circuit, after completing production stage 7 is 160¢.
(2) The cumulative expenditure on each circuit, after completing production stage 6 is 144¢.
19 May 2021, 10:46
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In the formula we need value of m to calculate the cumulative cost after each stage.
S1: Gives cumulative cost after stage 7, thus possible to calculate m. Thus we can calculate for stage 4. Sufficient
S2: Similar to above. Thus Sufficient
Ans is D
Plz confirm that my reasoning is correct
S1: Gives cumulative cost after stage 7, thus possible to calculate m. Thus we can calculate for stage 4. Sufficient
S2: Similar to above. Thus Sufficient
Ans is D
Plz confirm that my reasoning is correct
19 May 2021, 12:15
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Is 'c' in each of the statements a variable or a unit(c) for cents?.
If it's a variable ans C or else ans D
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If it's a variable ans C or else ans D
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