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Q.

Three-fourth of a number is less than four-fifth of the same number by 15. Find Two-third of the number.

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a

150

b

100

c

300

d

200

answer is B.

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Detailed Solution

$\frac{4}{5} x - \frac{3}{4} x = 15$

$\frac{16 x - 15 x}{20} = 15$

$x = 15 \times 20$

$x = 300$

$\frac{2}{3} o f n u m b e r = \frac{2}{3} \times 300 = 200$

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