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Sue should have finished (28+16x) Mathematics questions in 4 hours. A)How many questions would have been done in 30 minutes? B)If Sue could only finish (14+8x) questions, how mu…

Sue should have finished (28+16x) Mathematics questions in 4 hours. A)How many questions would have been done in 30 minutes? B)If Sue could only finish (14+8x) questions, how mu…
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2 votes
Sue should have finished (28+16x) Mathematics questions in 4 hours.

A)How many questions would have been done in 30 minutes?
B)If Sue could only finish (14+8x) questions, how much time did she spend?

asked
User KarstenF
by
8.5k points

1 Answer

2 votes
a) 3.5+2x
b)2 hr

workings
a)4 hr= 28+16x
30min= (28+16×)÷8
= 3.5+2x
b) 30min =3.5+2x
(14+8x)÷ (3.5+2x)
=4
30 min ×4 = 2hr
answered
User Adeel Mughal
by
7.9k points
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