Question
A takes 24 hours more than B to complete the work, and
32 hours more than C to complete the same work. The combined time taken by A and B to finish the work is equal to the time taken by C alone. Find the time required by B alone to complete the work.Solution
ATQ,
Let the time taken by C alone to complete the work be ‘x’ days. So, time taken by A alone to complete the work = (x + 32) days. Time taken by B alone to complete the work = (x + 32 – 24)= (x + 8) days According to question, {(x + 32) (x + 8)}/ {(x + 32) + (x + 8)} = x x ² + 40x + 256 = x(2x + 40) x ² = 256 x = 16 So, time taken by B alone to complete the work = 16 + 8 = 24 days
RBI has revised the ATM interchange fees in June 2021 from Rs 15 to?
‘Operation Ajay’ was launched by India to bring back its citizen from which of the following countries?
‘The Palace of Illusions’, a rendition of the Hindu epic ‘Mahabharata’, was written by which of the following novelists?
Shiv Kumar Sharma is associated with which instrument?
Head Quarter of “Bandhan Bank” is located in?
What was the theme of World Tourism Day 2023?
What is the total number of Geographical Indications (GI) tags supported by NABARD?
For which crop was the Champaran movement organized by Gandhiji in 1917?
Which of the following is NOT included in inventory investment when calculating national income?
‘Myopia’ is also known as:
Relevant for Exams:
