3396: It is possible to produce seedless tomato fruits by
(a) applying trace elements in tomato fields
(b) spraying mineral solution on plants
(c) spraying hormones on flowers
(d) applying fertilizers containing radioactive elements
3397: Three Dice (each having six faces with each face having one number from 1 to 6) are rolled. What is the number of possible outcomes such that at least one dice shows the number 2 ?
(A) 36
(B) 81
(C) 91
(D) 116
3398: A cubic metre of water at 0° C is solidified into ice. Density of ice is 0.96 of water at 0° C. Which of the following deductions are true?
I. Water expands when solidified.
II. Ice will float in water at 0° C with half its volume above the surface.
III. Density of all liquids are higher than its density when solidified.
(a) I only
(b) II only
(c) III only
(d) I and II
3399: There are two identical red, two identical black and two identical white balls. In how many different ways can the balls be placed in the cells (each cell to contain one ball) shown below such that balls of the same colour do not occupy any two consecutive cells?
(a) 15
(b) 18
(c) 24
(d) 30
3400: The Russian traveller who visited the Deccan during the medieval period of Indian history was
(a) Rastyannikov
(b) Shirokov
(c) Pavlov
(d) Nikitin