84. If a floor is 19' wide, and 40 per cent as wide as it is long, what is its length?

85. If 9 per cent of the above floor is cut out for a stairway, what is the area of the rest of the floor?

86. Estimate the cost of the hardware upon three given doors.

87. If B does a certain piece of work in 27 hours, and A does the same work in 11 per cent less time, how long does it take A to do it?

88. What per cent of the cost of a house is the painting, if the total cost of the house is $1500 and the painting $55?

89. What is the percentage of gain if lumber, bought for $16 per M, is handled and worked at a cost of $10 per M, and sold for $29.02 per M?

90. Three boards measure 50 ft. One is 20 1/2 per cent of the whole, another is 35 per cent. What is the percentage of the other?

91. A student earns $35 per term, of which he spends $25. What per cent does he save?

92. A student borrows $25, giving a note for 1 year at 6 per cent interest, payable at maturity. What will be the value of the note when it falls due?

93. A barn costs $300, the stock inside $500. If the barn burns and is a total loss, and 82 per cent of the stock is saved, what is the total loss?

94. If a circular saw does the work of 65 men, what per cent is gained if it takes one man to run it?

95. If the 65 men are paid $1 per day each, and the cost for power, maintenance, and one man's time is $6 per day, what is the actual per cent of profit from a circular saw?

96. What per cent of the cost of A's work is the difference in the cost of two equal jobs, if A does one for $6.40, and B the other for $6.85?

97. If 12 1/2 per cent of the area of a room is occupied by a closet which covers 17 1/2 sq. ft. of space, what is the area of the room?

98. If the above room is 5/7 as long as it is wide, what is its size?

99. What is the area of a board, if another, 85 per cent as large, contains 17 sq. ft.?

100. A house costing $900 is built upon a lot of land which cost $150. The property is insured for § of the cost of the house, which burns, and is a total loss. What is the actual loss to the owner, after the insurance has been paid?

101. Measure, make the stock list, and estimate the cost of the stock in a given case of drawers.

102. A saw cuts 6000 feet of lumber in a day, which is sold for $12.50 per M. If it costs 70 per cent of the selling price for stumpage, hauling, sawing, and handling, what is the profit upon the day's work?

103. If 50 men are paid $2 per day each, and it costs $220 for the material they use, what must be received for the work to give a profit of 8 per cent?

104. Two jobs cost respectively $12.80 and $13.90. The difference is what per cent of the more expensive job?

105. If 12 1/2 per cent of the area of a room is occupied by a closet which covers 18 sq. ft. of floor space, what is the area of the room?

106. What is the size of the above room if it is 14' upon one side?

107. If the above room is 8' ll 3/4" high, how many cubic feet of air will it contain?

108. Estimating 575 bricks to a cubic yard, how many bricks are there in a pile 3' X 5' 4" X 15' 4 1/2"?

109. If a granite capstone 10" thick will safely support a load of 700 lb. per sq. in., what should be the area to carry a load of 152,000 lb.? Give the answer in sq. ft.

110. If a limestone foundation is to support 395,000 lb., and the stone will safely carry 250 lb. per sq. in., what will be the required area?

111. If compact gravel and sand will carry a load of 7 tons per sq. ft., how large an area will have to be covered to carry a load of 360,600 lb.?

112. If clay will safely support a load of 2 tons per sq. ft., how heavy a load will a footing 7' X 7' support?

113. If a Portland cement foundation made of 1 part of cement, 2 of sand, and 5 of broken stone will support 150 lb. per sq. ft., what will be the necessary area to carry safely 98,000 lb.?

114. If painting costs 10 per sq. yd., how much will it cost to paint 16 squares?

115. A house is built at a cost of $860 and lies idle for one year. It is then sold for $900.51, which includes cost of transfer. With interest at 6 per cent, what per cent is lost?

116. A workman made a tool chest, the material for which cost $1.75; he sold it for $8. What per cent of the selling price represented his labor?

117. A table which cost $1.50 to make, sold for $1.35. What was the per cent of loss?

118. Measure, make the stock list of a given fence, and estimate the cost of the material.

119. Measure and make the stock list of a given veranda floor and its supports.

120. A panel door has 2125 sq. in. of surface, 1241 of which are occupied by panels. What per cent of the entire surface do the panels occupy?

121. Select a small shed or outhouse, and make the stock list of all the material used in its construction.

122. What pay should be given to A, who does | as much work as B, who earns 8 per hour?

123. If 571.32 ft. is 23 per cent of the amount of the stock required to do a certain job, how much is needed for the whole?

124. To decide which can produce work with less expense, A and B, receiving 28 and 30 per hour respectively, agree upon a contest, each to make three packing boxes of the same dimensions. A does his work in 2 8/9 hours, while B requires 3 hours to finish his work. Which is the more profitable man, and by how much?

125. Estimate the length of shelving necessary to accommodate a given quantity of books.

126. If 20 per cent of the cost of a job is labor, 7 per cent nails, 15 per cent painting, 10 per cent profit, what is the percentage of the value of the other material?