If 15 pumps of equal capacity can fill a tank in 7 days, then how many extra pumps will be required to fill the tank in 5 days?

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) The water level will rise to a height v2/2 g and then stop. EXPLANATION:  Initially, the velocity of the water coming out of the tank will be negligible due to the...

(c) two extra neutrons and no extra electron

(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

(a) 112 men can complete the whole work in 8 × 3 = 24 days  Required no. of days = 12x24/16= 18

(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...

P1 = 2.5 atm  P2 = ?  T1= 25o C =298 K  T2 = 15350 C =1808 K  According to Gay Laussac law,  P1/ T1 = P2 / T2  P2 = 2.5 x 1080/ 298 =15.16 atm.  Since...

(d) This will make it very clear to him that doing small favours are not part of job. You are far more responsible for the position. The advise will show...