Collection of Examples and Problems in Pure and Mixed Mathematics: With Answers and Occasional Hints |
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Page 51
... means between 117 and 477 . 33. Insert 4 AR . means between 3 and 18 . 34. Insert 4 AR . means between 2 and -18 . 35. Insert 9 AR . means between 1 and - I. 36. Insert 7 AR . means between -14 and 44 . 37. There are n AR . means ...
... means between 117 and 477 . 33. Insert 4 AR . means between 3 and 18 . 34. Insert 4 AR . means between 2 and -18 . 35. Insert 9 AR . means between 1 and - I. 36. Insert 7 AR . means between -14 and 44 . 37. There are n AR . means ...
Page 54
... means as 37 to 12 . What were their respective shares ? 44. Given S , and S , the sums of the even and odd terms respect- ively of a Geom . series of 2n terms . Of m Ar . means inserted between its pth and qth terms , required the rth mean ...
... means as 37 to 12 . What were their respective shares ? 44. Given S , and S , the sums of the even and odd terms respect- ively of a Geom . series of 2n terms . Of m Ar . means inserted between its pth and qth terms , required the rth mean ...
Page 55
... means between 9 and 3 ; and 20 . 4. Insert n Harm . means between x and y . and 3 between I 5. Find a fourth Harm . proportional to 12 , 6 , 4 . 6. Given x and y the 1st and 2nd terms of a Harm . progression ; continue the series , and ...
... means between 9 and 3 ; and 20 . 4. Insert n Harm . means between x and y . and 3 between I 5. Find a fourth Harm . proportional to 12 , 6 , 4 . 6. Given x and y the 1st and 2nd terms of a Harm . progression ; continue the series , and ...
Page 56
... means between a and b are in continued proportion . 15. If y be the Harm . mean between x and z , and x and z be the Ar . and Geom . means respectively between a and b ; express y in terms of a and b . 16. There are 4 nos . of which the ...
... means between a and b are in continued proportion . 15. If y be the Harm . mean between x and z , and x and z be the Ar . and Geom . means respectively between a and b ; express y in terms of a and b . 16. There are 4 nos . of which the ...
Page 57
... means of 12 different flags which can be hoisted 4 at a time above each other ? 3. In how many different ways may 8 persons be seated at table ? Ex . 52 . 4. In how many different ways Ex . 51 , 52. ] 57 PERMUTATIONS AND COMBINATIONS ...
... means of 12 different flags which can be hoisted 4 at a time above each other ? 3. In how many different ways may 8 persons be seated at table ? Ex . 52 . 4. In how many different ways Ex . 51 , 52. ] 57 PERMUTATIONS AND COMBINATIONS ...
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Common terms and phrases
altitude axes axis vertical balls barometer base beam bisecting body cent centre of gravity centre of pressure chord circle compare the pressures conic section coordinates cos² curve cycloid cylinder density determine diameter Divide drawn ellipse equal equilibrium extremity feet filled with fluid Find the area Find the centre find the depth find the distance Find the equation find the locus Find the value frustum given point hemisphere horizontal plane hyperbola hypothenuse immersed vertically inches inclined plane inscribed intersection latus rectum length mercury middle point parabola paraboloid parallel perpendicular projected pulley radii radius respectively rest right angles roots sides sin² small orifice sphere square straight line string surface tangent velocity vertex vertical angle weight
Popular passages
Page 87 - AB be the given straight line ; it is required to divide it into two parts, so that the rectangle contained by the whole, and one of the parts, shall be equal to the square of the other part.
Page 115 - The area of a regular polygon inscribed in a circle is a geometric mean between the areas of an inscribed and a circumscribed regular polygon of half the number of sides.
Page 129 - Express the area of a triangle in terms of the coordinates of its angular points a, b ; a', V ; a", b", 40.
Page 54 - A and B set out to meet each other. A went 3 miles the first day, 5 the second, 7 the third, and so on. B went 4 miles the first day, 6 the second, 8 the third, and so on. In how many days did they meet?
Page 50 - A detachment of an army was marching in regular column, with 5 men more in depth than in front ; but upon the enemy coming in sight, the front was increased by 845 men ; and by this movement the detachment was drawn up in 5 lines. Required the number of men.
Page 61 - C^. 27. A person wishes to make up as many different parties as he can out of 20 friends, each party consisting of the same number ; how many should he invite at a time ? 28. When the No. of Combs. of 2n things taken r together is the greatest possible ; required r. 29. There are 4 regular polyhedrons marked, each face with a different symbol, and the numbers of their faces are 4, 6,8, 12 respectively; taking all of them together, how many different throws are possible ? 30.
Page 85 - IF from any point without a circle two straight lines be drawn, one of which cuts the circle, and the other touches it ; the rectangle contained by the whole line which cuts the circle, and the part of it without the circle,. shall be equal to the square of the line which touches it.
Page 60 - At a game of cards, 3 being dealt to each person, any one can have 425 times as many hands as there are cards in the pack. How many cards are there 1 12.
Page 14 - If 5 men and 7 boys can reap a field of corn of 125 acres in 15 days; in how many days will 10 men and 3 boys reap a field of corn of 75 acres, each boy's work being one-third of a man's ? 14.
Page 59 - The number of balls in a triangular pile is to the number in a square pile, having the same number of balls in the side of the base, as 6 to 1 1 ; required the number in each pile.