Start learning 50% faster. Sign in now
Work done by Tanu in One day = (1/A) units Work done by Tanu and Manu together in one day = [1/(A - 6) ] units Work done by Manu in one day = (1/72) units ATQ, (1/A) + (1/72) = [1/(A - 6) ] Or, (1/72) = {1/(A - 6) } - (1/A) Or, A X (A - 6) = 72 X 6 Or, A2 - 6A = 432 Or, A2 - 6A = 432 Or, A2 - 6A - 432 = 0 Or, A2 - 24A + 18A - 432 = 0 Or, A(A - 24) + 18(A - 24) = 0 Or, (A - 24) (A + 18) = 0 So, 'A' = 24 or -18 But since time taken cannot be negative, so 'A' = 24 So, time taken by Tanu to complete the work = 'A' days = 24 days Therefore, required time by Tanu with increased efficiency = 24 x (3/4) = 18 days
Under which ministry does the EPFO operate?
Which among the following state won the 8th sub-junior Hockey championship recently held in Assam?
1. 'World Development Report' is published annually by:
. Which of these sports is Sarita Singh related to?
In secret code language, 'HOTEL' is coded as 300. What will be the code for 'BORE' in the same code?
Redemption of debentures will decrease the debt-equity ratio
What is the full form of BSBDA?
According to the United Nations' World Economic Situation and Prospects Report, 2019, the Indian economy is expected to expand by ______in 2020.
The inaugural Om-shaped temple in Pali, Rajasthan, adheres to which architectural style?
What musical instrument is Indian musician Shahid Parvez renowned for playing?