Ramesh had 20 pencils, Sheelu had 50 pencils and Jamaal had 80 pencils. After 4 months, Ramesh used up 10 pencils, Sheelu used up 25 pencils and Jamaal used up 40 pencils. What fraction did each use up? Check if each has used up an equal fraction of her/his pencils?

Using differentials, find the approximate value of each of the up to 3 places of decimal. sqrt(25.3)

The equilibrium N_(2)+O_(2)hArr 2NO is established in a reaction vessel of 2.5 L capacity. The amounts of N_(2) and O_(2) taken at the start were respectively 2 moles and 4 moles. Half a mole of nitrogen has been used up at equilibrium. The molar concentration of nitric oxide is :

Using differentials, find the approximate value of each of the up to 3 places of decimal. (15)^((1)/(4))

Using differentials, find the approximate value of each of the up to 3 places of decimal. (81.5)^((1)/(4))

Using differentials, find the approximate value of each of the up to 3 places of decimal. (255)^((1)/(4))