Decimals and Fractions Practice Test 4

Question : 30 of 40

Marks: +1, -0

The sum of 1/2, 1/4 and 1/8 of a number is 28. The number is

Solution:

Let the number be x

∴x/2+x/4+x/8=28,

⇒{7x}/8=28

∴x={28×8}/7=32

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