Time taken by A alone to complete the entire work = 15/0.5 = 30 days Time taken by B alone to complete the entire work = 30 + 10 = 40 days Let the total work = L.C.M of 30, 40 and 20 = 120 units Then, efficiency of B = (120/40) = 3 units/day Combined efficiency of B and C = (120/20) = 6 units/day So, efficiency of C alone = 6 – 3 = 3 units/day So, time taken by C alone to complete the entire work = (120/3) = 40 days
With whom did Alberuni come to India?
Who established the Kanva Dynasty?
Which ancient Indian text is referred to as the 'Fifth Veda'?
Which of the following dynasties was not a part of the long-drawn tripartite struggle for the control over Kananuj during the 8th century A.D.?
Mohammed-bin-Qasim conquered Sind in the year
Who was the spiritual mentor of Amir Khusro?
Which statements about millets are true?
(I) Kutki and Sanwa are the varieties of Millets.
(II) The earliest evidence of Millets consumpti...
Who is regarded as the great law-giver of ancient India?
Which place of Indus civilization is located in India?
Identify the dam that is located in South India.
