Question
A can do a work in 30 hours while B can do it in 20
hours. If C is 60% more efficient than A and B together, then find the time taken by C alone to complete the work.Solution
ATQ, Total work = LCM of (30 and 20) = 60 units
Work by A in one hour = 60 ÷ 30 = 2 units
Work by B in one hour = 60 ÷ 20 = 3 units
Work by A and B together = 2 + 3 = 5 units
C is 60% more efficient → C’s work = 5 + (60% of 5) = 5 + 3 = 8 units
Time taken by C = 60 ÷ 8 = 7.5 hours
Quantity 1: If a student scores 25% marks then he is failed by 210 marks. But if he score 55% marks than he is passed with 240 marks. Find the passing ...
The question consists of two quantities, choose the correct option which represents the. correct relation between Quantity I and Quantity II.
...
The speed of train A is 180 km/hr and it can cross a pole in 4 seconds. Travelling in same direction Train A can cross a man sitting inside train B in 1...
Which of the following is the correct relation between Quantity I and Quantity II?
Quantity I: The area of a square is 81 cm². Find the perimete...
Quantity-I: 'Ajay' is capable of completing 25% of a task in 13 days. Together, 'Ajay' and 'Bijay' can finish the entire task in 24 days. If 'Bijay' al...
Quantity I: An amount is to be distributed among A, B, and C in the ratio 1:3:2 respectively, but was erroneously distributed in the ratio 2:7:9 due to...
Quantity-I: Both 'Asmita' and 'Bittu' can finish a sales target in 48 days and 27 days, respectively. If they begin working together, determine the n...
Quantity I : A Alone can complete a work in 21 days. If be alone work for eight days and then leaves, then B alone can complete the remaining work ...
Quantity 1: A factory produces 1200 gadgets in 8 hours. If the production rate is increased by 25%, how many gadgets can be produced in the same time?
In the question, two quantities I and II are given. You have to solve both the quantities to establish the correct relation between Quantity-I and Quan...
