Number, NAP_70057

Question

The heights of two buildings are in the ratio of 1 : 8.

If together, their height is 450 metres, how much taller is the larger building, in metres?

Worked Solution
Total Parts in Ratio = 1 + 8
= 9
Smaller Building's height = 4509\dfrac{450}{9} ×\times 1
= 50 metres
Larger Building's height = 4509\dfrac{450}{9} ×\times 8
= 400 metres
Difference in height = 400 −- 50
= {{{correctAnswer}}}

Therefore, the larger building is {{{correctAnswer}}} metres taller.

Variant 0

DifficultyLevel

580

Question

The heights of two buildings are in the ratio of 1 : 8.

If together, their height is 450 metres, how much taller is the larger building, in metres?

Worked Solution
Total Parts in Ratio = 1 + 8
= 9
Smaller Building's height = 4509\dfrac{450}{9} ×\times 1
= 50 metres
Larger Building's height = 4509\dfrac{450}{9} ×\times 8
= 400 metres
Difference in height = 400 −- 50
= 350

Therefore, the larger building is 350 metres taller.

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
correctAnswer
350

Answers

Is Correct?Answer
x

450

✓

350

x

150

x

50

Tags

  • staging_suejones