Exams

Speed of the train relative to man

= (125/10) m/sec = (25/2) m/sec.

[(25/2) x (18/5)] km/hr = 45 km/hr.

Let the speed of the train be 'x' km/hr.

Then, relative speed = (x - 4) km/hr.

x - 4 = 45 => x = 49 km/hr.

First nationalisation of commercial banks in India took place in 1969 and second time in 1980.

The seven elements — helium, neon, argon, krypton, xenon, radon, and oganesson of Group 18 of the periodic table are Noble or Inert gases.

Radon is the heaviest and Helium is the lightest gases of the noble gases.

Endocrine glands are glands of the endocrine system that secrete their products, hormones, directly into the blood rather than through a duct.

The major glands of the endocrine system include:

pineal gland,

pituitary gland,

pancreas,

ovaries,

testes,

thyroid gland,

parathyroid gland,

hypothalamus and

adrenal glands.

Amount = 80001+51002

= 8000 x 21/20 x 21/20 

= Rs. 8820

From the given data,

Ratio of capital = 12000 : 14400 = 5 : 6

Required Difference = 

$$\begin{gathered} 6 - 56 + 5 88100 x 7500 + 12100 x 7500 \\ = 111 x 88 x 75 + 12 x 75 \\ = 600 + 900 \\ = 1500 \end{gathered}$$

Let the efficiencies of filling pipes is 4p and 5p respectively.

Efficiency of pipe which empty the tank = 2/3 x 9p/2 = 3p

Total work = 3p x 36 = 108p

Time to fill the tank by both the pipes = 108p/9p = 12 min.