Choose the right answer
1.Euler’s formula for convex surface is
V + F = east + 2, where V=vertices, F=faces in addition to E= edges
If seat out of faces inwards a cuboid are 6, seat out of vertices are 8, hence seat out of edges volition be
(a) 12 (b)14 (c)10 (d)8
2. H5N1 waiter's salary consists of his salary in addition to tips. During i calendar week his tips were 5/4 of his salary. What fraction of his income came from tips?
a) 4/9 b) 5/4 c) 5/8 d) 5/9
3. Three friends had dinner at a restaurant. When the neb was received, Amita paid 2/3 equally much equally Veena paid in addition to Veena paid 1/2 equally much equally Tanya paid. What fraction of the neb did Veena pay?
a) 1/3 b) 3/11 c) 12/31 d) ⅝
4. If H5N1 finishes a slice of operate inwards 10 days hence 1 hateful solar daytime operate of H5N1 volition be-
a) 1 b) 1/10 c) 1/5 d) ½
5. If 5:4 = x:20 hence x volition be
a) xvi b) v c) 4 d) 25
6. In a metropolis 40% of the adults are illiterate piece 85% of the children are literate. If the ratio of the adults to that of the children is 2:3, hence what per centum of the population is literate?
a) twenty b) 25 c) fifty d) 75
7. A, B, C, D in addition to east play a game of cards. H5N1 says to B,"If you lot compass me 3 cards, you lot volition convey equally many equally east has in addition to if I compass you lot 3 cards, you lot volition convey equally many equally D has." H5N1 in addition to B together convey 10 cards to a greater extent than than what D in addition to east together have. If B has 2 cards to a greater extent than than what C has in addition to the full seat out of cards endure 133, how many cards does B have?
a) 22 b) 23 c) 25 d) 35
8. There are deer in addition to peacocks inwards a zoo. By counting heads they are 80. The seat out of their legs is 200. How many peacocks are there?
a) twenty b)30 c) fifty d) 60
9. H5N1 begetter is forthwith 3 times equally former equally his son. Five years back, he was iv times equally former equally his son. The historic menstruum of boy inwards years is
a) 12 b)15 c) xviii d) 20
10. If + agency 'divided by', - agency 'added to', x agency 'subtracted from' in addition to / agency 'multiplied by', hence what is the value of 24 / 12 - xviii + ix ?
a) -25 b) 0.72 c)15.30 d) 290
