Question

Shaktikant is 25%more efficient than urjit. Shaktikant alone worked for 4 days and then replaced by urjit and the work was finished by urjit. Total days taken to finish the work are 14 days. Time taken by urjit and viral together to finish the work if viral can finish the work alone is 30 days.

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Answer 1

Answer:

10 days

Step-by-step explanation:

according to shaktikant and urjit efficiency.

shaktikant done = 1.25 units / day.

urjit done = 1 unit/ day.

shaktikant worked for 4 day .

means, 1.25 * 4 = 5 units of work done .

urjit worked for 10 days.

means, 1*10 = 10 units of work done.

so, total work completed.which means total 15 units is our work .

for viral it takes 30 days to complete 15 units.means ,daily 1/2 units/ day.

Both viral and urjit worked so (1+1/2) = 3/2 units per day.

so, for complete 15 units .it take( 15/(3/2) ) =10 days.