two fift of one third of three seventh of a numberis 15; what is the 40%of that number
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40% of the number is 105.
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Let the number = xNow, according to question : 25 of 13 of 37 of x = 15⇒25 × 13 × 37 × x = 15⇒2x35 = 15⇒2x = 15 × 35⇒2x = 525⇒x = 5252Now, 40% of x = 40% of 5252 = 40100×5252 = 20×525100 = 105
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