a54. Together Chotu and Nitu plough a field in 4 days. Nitu alone take

1.	a54. Together Chotu and Nitu plough a field in 4 days. Nitu alone takes 6 days toplough the same field. In how many days can Chotu alone plough the field?(a) 8(b) 10 (c) 11 (d) 12
Answer» 1 / Chotu + 1 / Nitu = 1 /4 1/Chotu + 1/ 6 = 1/4 1 / Chotu = 1/4 - 1/6 1 / chotu = 3/12 - 2/12 1 /Chotu = 1/12 Chotu = 12 Chotu alone will do the work in 12 days

a54. Together Chotu and Nitu plough a field in 4 days. Nitu alone takes 6 days toplough the same field. In how many days can Chotu alone plough the field?(a) 8(b) 10 (c) 11 (d) 12

Answer»

1 / Chotu + 1 / Nitu = 1 /4

1/Chotu + 1/ 6 = 1/4

1 / Chotu = 1/4 - 1/6

1 / chotu = 3/12 - 2/12

1 /Chotu = 1/12

Chotu = 12

Chotu alone will do the work in 12 days