16. The number of ways in which 5 different beads can be arranged to form a necklace is :
കു 24 (ड) 120
© 12 o) 18

17. Anu starts walking from home towards East, After walking for 20 m he turns right and goes
for 10 m. He then turns left and goes for 20 m. He then turns right and go for 20 m. What is
his position with respect to his starting point with magnitude and direction?

(ಗಿ) 30 m North-West. (ए) 30 m South-East
(C) 50 m North-West. (D) 50 m South-East

18. 17 the given series one number is സാവാള. Find the number.
3, 6, 24, 72, 144, 576, 1152, 3456
കു 6 @) 144
(ര 3456 (0) 1152

19. 10 १ triangle ABC, angle A is larger than angle C and smaller than angle B by the same
amount, If angle Bis 70°, what is the value of angle A : .

ക്ര 605 (0) 53°
(C) 885 (D) 70”

20. 17 a class of 15 students, 4 failed in English, 6 failed in Mathematics and 3 failed in both.
How many passed in both the subjects?

@ 1 ® 0
© 7 1) 8

21, Eutrophic lakes means :
(A) . Lake poor in nutrients 18) Lake rich in nutrients
(0) Lake poor in flora and fauna (D) Lake lacking water

22. An emulsion is a colloidal system consisting 01 :
(4) two solids (B) two liquids
(0) गाह gas and one solid (D) one gas and one liquid

23. What is the scientific phenomenon behind the working of bicycle reflector?
(ക) reflection (B) refraction
(0) total internal reflection (0) defraction

۸ 5 46/2014
⋅ [P.T.0.]