Subject
Quantitative Aptitude
Topic
Fraction & Decimal
A boy was asked to multiply a number by 7/8, instead he divided the number by 7/8 and got the result 15/14 more than what he should have got if he had multiplied the number by 7/8. The number is -
A boy was asked to multiply a number by 7/8, instead he divided the number by 7/8 and got the result 15/14 more than what he should have got if he had multiplied the number by 7/8. The number is -
ক)
8খ)
6গ)
4ঘ)
NoneExplanation
Solution: Let, the number be x ATQ, x/7 - 7x/8 = 15/14 => 8x/7 - 7x/8 = 15/14 => 64x - 49x/56 = 15/14 => 15x = 60 [ উভয়পক্ষকে 14 দ্বারা গুণ করে পাই ] x = 4Related questions
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