Question
Eight men and five boys together earn ₹3,240 in 6
days. Meanwhile, three men and two boys working together take 12 days to earn ₹2,484. How many days will it take for five men and four boys to earn ₹1,476?Solution
Amount earned by (8 men + 5 boys) in 1 day = 3240/6 = Rs. 540….. (1)
Amount earned by (3 men + 2 boys) in 1 day = 2484/12 = 207….. (2)
On solving equation (1) and (2), we get
Amount earned by a man in 1 day = Rs. 45
Amount earned by a boy in 1 day = Rs. 36
Therefore, number of days taken by (5 men + 4 boys) to earn Rs. 1476 = 1476/{(5 × 45 + 4 × 36)} = 4 days
Which indicator is commonly used to measure a country's economic growth?
The plant-origin insecticide, "Azadirachtin" is derived from which plant?
Apomixis refers to
Which of the following is not the steps of teaching process?
Visual aid of communication includes which of the following?
According to CRIDA how much is the Depth at which Deep Ploughing is done?
Which of the following mechanisms do not encourage cross pollination?
ICAR- Indian Institute of Rice Research is situated at
Which of the following zone lies from 200-1000 meters deep and only blue light is seen here?
The weeds whose seed is difficult to separate from crop seed after contamination is called ___
Relevant for Exams:
