Question
A buffalo alone can plough field ‘A’ in 10 days. A
Bull alone can plough the field ‘A’ in 15 days. Find the number of days taken by 3 bulls and 2 buffalo to together plough field ‘B’ that is 20% larger than field ‘A’?Solution
Let the total work done to plough field ‘A’ = 30 units (LCM of 10 and 15) Then, efficiency of a buffalo = (30/10) = 3 units/day Efficiency of a bull = (30/15) = 2 units/day Total work required to plough field ‘B’ = 30 × 1.20 = 36 units Combined efficiency of 3 bulls and 2 buffalo = 2 × 3 + 3 × 2 = 12 units So, number of days required to plough field ‘B’ = 36/12 = 3 days
What is the range of Pralay, India’s first quasi-ballistic missile?
India’s first dedicated space for writers and artists, “Writers’ Village,” is located in which state?
What does the term ‘Vithoot’ mean in Kerala’s afforestation programme?
How much revenue did Madhya Pradesh’s excise department earn from liquor sales in 2023?
What percentage of gross borrowings is expected to finance the fiscal deficit of Indian states in FY25, according to the NSE report?
Which rocket was successfully launched by Europe after a four-year delay?
Union Minister Dr Jitendra Singh launched two AI-powered weather forecasting systems developed by IMD in collaboration with which two institutions?
What is the total amount currently held in District Mineral Foundations (DMFs) across Aspirational Districts?
Under the NST Rules, 2026, the Chairperson of the National Sports Tribunal shall hold office for a term of five years or till he attains which age, whic...
Who has become India's No. 1 chess player?
Relevant for Exams:
