12 Men can complete one-third of the work in 8 days. In how many days can 16 men complete that work?

B alone finish work in x days A alone work in x - 5 A one day works= 1/(x-5) and B one day works = 1/x A+B one day work = 1/6 so, 1/(x-5)...

(c) Here, 5 men out of 8 men and 6 women out of 10 women can be chosen in 8C5 × 10C6 ways, i.e., 11760 ways.

Since Ram is twice as good, he will do the work in 30/2 =15 days

(b) 18 men can complete the work in 5 days. ?  1 man will complete the work in 18 × 5 days 21 men will do the work in 18x5/21 =30/7 =4...

(c) Number of days = 12x8/12-8 = 24 days

(e) Required number of days = 6x12 /6+12 = 4 days

(d) Required no. of days =9800/350= 28 days

(d) W can do 25% of a work in 30 days. W can do1/4of a work in 30 days W can do the complete work in 120 days. X can do1/4of the work...

(a) No. of pumps required to fill a tank in 7 days = 15 ∴ No. of pumps required to fill a tank in 1 day = 15 × 7 = 105...

(b) Total number of working day = 50 × 50 = 2500 days for men For women it is equal to 4000 days For 1st 10 day means 40 men × 10...