46: 50 men or 80 women can finish a job in , 50 days. A contractor deploys 40 men and 48 women for this work, but after every duration of 10 days, 5 men and 8 women are removed till the work is completed. The work is completed in:
(a) 45 days
(b) 50 days
(c) 54 days
(d) 62 days
47: Which of the following are correctly matched?
1. Medha Patkar Environment Activist
2. Jamini Roy Painter
3. Bhuvaneshvari Squash player Kumari
Choose the correct answer from the codes given below:
(a) 1 and 2
(b) 1 and 3
(c) 2 and 3
(d) 1, 2 and 3
48: Gypsum is added to cement clinker to
(a) Increase the tensile strength of the cement
(b) Bind the particles of calcium silicate
(c) Decrease the rate of setting of cement
(d) Facilitate the formation of colloidal gel
49: Consider the following countries :
1. Anglo
2. Colombia
3. Congo
4. Sudan
Which of these countries has/have been suffering from civil war?
(a) 1 only
(b) 2 and 3
(c) 4 only
(d) 1, 2, 3 and 4
50: In an electronic watch, the component corresponding to pendulum of a pendulum clock is a
(a) transistor
(b) crystal oscillator
(c) diode
(d) balance wheel