IfAS
JODHPUR
CSIR NET LIFESCIENCE JUNE 2015 SOLVED PAPER BY IFAS JODHPUR
PART 'A'
1. What is angle x in the schematic diagram given below? 9. Let m and n be two positive integers such that m + n + mn = 118. Then the value of m + n is
1. not uniquely determined 2. 18
3. 20
4. 22
10. From a group of 40 players, a cricket team of 11 players is chosen. Then, one of the eleven is chosen as the captain of the team. The total number of ways this
?
can be done is [ below means the number of
?
ways n objects can be chosen from m objects]
40
??
1.
2. 11
11
??
40
39
3. 29
4.
11
11
1. 60
3. 40
2. 50
4. 30
2. A 3 m long car goes past a 4 m long truck at rest on the road. The speed of the car is 7 m/s. The time taken to go past is
1. 4/7
2. 1 s
3. 7/4 s
4. 10/7 s
3. Of three persons A, Band C, one always lies while the others always speak the truth. C asked A, "Do you always speak the truth, yes or no?" He said something that C could not hear. So, C asked B, "what did A say?"
B replied, "A said No. So, who is the liar?
1. A
2. B
3. C
4. cannot be determined
4. Consider 3 parallel strips of 10m width running around the Earth, parallel to the equator; A1 at the
Equator, A2 at the Tropic of Cancer and A3 at the
Arctic Circle. The order of the areas of the strips is
1. A1<A2< A3
2. A1=A2> A3
3. A1>A2= A3
4. A1>A2> A3
5. A pyramid shaped toy is made, by tightly placing cubic blocks of 1 x 1 x 1 cm3. The base of the toy is a square 4 x 4 cm2. The width of each step is 0.5 cm.
How many blocks are' required to make the toy?
1. 30
2. 34
3. 36
4. 40
6. A single celled spherical organism contains 70% water by volume. If it loses 10% of its water content, how much would its surface area change by approximately? 1. 3%
2. 5%
3. 6%
4. 7%
7. Two plane mirrors facing each other are kept at 60° to each other. A point is located on the angle bisector.
The number of images of the point is
1. 6
2. 3
3. 5
4. Infinite
8. Suppose
(1) x = 4
(2) Then x - 4 = x2 - 42(as both sides are zero)