50. If 32 men do a piece of work in 73 days, in how many days will 1 man do the same work?

51. What is the value of 34 acres of land, at $ 37 per acre?

52. If a horse can travel 43 miles per day, how far can he travel in 71 days?

53. How many yards of cloth in 67 pieces, if each piece contains 42 yards?

63. As removing a figure one place to the left multiplies it by ten, two places multiplies it by a hundred, etc., to multiply by 10, 100, 1000, or 1 with any number of ciphers annexed,

Rule.

Move the decimal point as many places to the right as there are ciphers in the multiplier.

NOTE. If there are not as many decimal places in the multiplicand as ciphers in the multiplier, in order that the point may be moved as required, ciphers must be annexed to the multiplicand.

17.57
50

878.5 Ans.

Ans. 87.56. Ans. 35640.

After multiplying by 5, the product 87.85 is multiplied by 10 by moving the decimal point one place to the right which gives 878.5, Ans.

79. Multiply 3724 by 4008. 80. 986274 × 62400=?

81. 70098 x 80200=?

82. Multiply 754.18 by 325. 83. Multiply 16.74 by 204.

84. Multiply 7849.93 by 400.

85. What will 7 horses cost at $175.35 each?

Ans. 14925792.

86. At $6.50 a ton, what will 16 tons of coal cost? 87. At $8.17 a barrel, what will 58 barrels of sugar cost? 88. What will 14 dormer window-frames cost, at $19 each? 89. If hay is $18.75 a ton, what will 76 tons cost?

90. How many yards of cloth in 10 bales, if each bale contains 25 pieces and each piece 37 yards?

91. Multiply seven million six hundred four thousand fortyeight, and sixteen thousandths, by seventy-eight thousand sixteen.

92. What will be received for 17 city lots, if sold for $ 1265.75 each?

93. In its annual revolution the earth moves 19 miles a second; how far does it move in an hour, there being 60 seconds in a minute and 60 minutes in an hour?

94. How far will light move in an hour, if it moves 186380 miles a second?

95. Multiplicand=76.78; multiplier 4008; product

= ?

96. Multiplier 3333; multiplicand= 44.44; product =?

=

97. If horses are worth $117 each, and oxen $85.50 a pair, what must I pay for 18 horses and 5 pairs of oxen?

98. If hay is $15.50 a ton, and oats $0.55 a bushel, what must I pay for 28 tons of hay and 100 bushels of oats?

99. If each horse eats a bushel of oats a week, and oats are $ 0.60 a bushel, how much will it cost for oats for 27 horses for 52 weeks?

100. If it costs $38754 to build a mile of railroad, what will it cost to build 27 miles?

101. If sound travels 1090.6 feet a second, how far will it travel in 37 seconds?

102. Massachusetts contains 8315 square miles. What is its population if there are 269 persons to a square mile?

103. What do I save a year if my income is $2500, and my expenses $37 a week, 52 weeks making a year?

104. If I pay $5.50 a ton for coal and $0.25 a ton for putting it in, what will my year's supply of 16 tons cost me?

105. If I purchase 56 barrels of cranberries at $11 a barrel, and to pay for it give 48 barrels of apples at $2 a barrel, and the rest in money, how much money do I pay?

106. A cattle train is made up of 17 cars, and each car contains 53 sheep. If the sheep average 115 pounds each in weight, what do all the sheep weigh?

107. A certain hall will seat 1543 persons. If the seats are occupied by persons who weigh on the average 125 pounds each, what will be the weight of the persons supported by the floor?

108. If Mr. Brown owns 3 houses, the first worth $2783, the second 3 times, and the third 7 times as much as the first, what are the three houses together worth?