Question
‘Amit’ is 1.5 times as efficient as ‘Bhuvan’, who
is 1/3 as efficient as ‘Chirag’. If Amit and Chirag together complete a work in 18 days, how long will Bhuvan and Dev take to do it if their efficiency ratio is 2:1 respectively?Solution
ATQ,
Let efficiency of Chirag = 3x units/day
Efficiency of Bhuvan = 3x / 3 = x units/day
Efficiency of Amit = 1.5x units/day
Efficiency of Dev = (x / 2) × 1 = 0.5x units/day
Total work = (Amit + Chirag) × 18 = (1.5x + 3x) × 18 = 81x units
Combined efficiency of Bhuvan and Dev = x + 0.5x = 1.5x units/day
Time = 81x / 1.5x = 54 days
Select the most appropriate indirect form of the given sentence.
Harry said to Margaret, “I already have an appointment at nine but I can fit...
Choose the option that is the indirect form of the sentence.
“Have you got a blue scarf”? the customer asked the assistant.
Select the most appropriate direct form of the given sentence.
She exclaimed that she looked very ugly in that dress.
For how long will you keep neglecting your duties.
Select the correct direct form of the given sentence.
Ishmit told his mother that someone had come to see her that day
Select the most appropriate indirect/direct form of the given sentence.
Radha said, “ I am going to read this book now before I start a new job...
Select the most appropriate indirect form of the given sentence.
Taru said, “Kavya is going to her grandmother’s house today for the weeken...
Select the most appropriate indirect form of the given sentence.
The teacher said to the parents, “Young children are very restless.”
I said to the taxi driver, "You must be crazy to drive so fast."
Select the most appropriate direct form of the given sentence.
I asked Rahul why he was back so soon.