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
নিচের ভগ্নাংশগুলোর মধ্যে কোনটি বৃহত্তম ?If the number 17/24 , 1/2, 3/8, 3/4 and 9/16 were ordered greatest to least, the middle number of the resulting sequence would beWhich of the following has the greatest value ?The fractional expression of 0.40 is -A cake is divided into three pieces so that the first piece is four times as big as big as the second and the second piece is three times as the third. What fraction of the entire cake is the smallest piece?Which of the following fractions is the smallest ?A petrol tank that is 1/2 full has 8 gallons petrol removed. The tank is then 1/10 to full. What is the capacity, in gallons of the tank?A tree increases annually by 1/8 of it's height. By how much will it increase after 2 years, if it stands today 64 cm high ?