10 key machines

A company sold 4332 washing machines in a year. Round the number of washing machines sold to the nearest ten. => 4330 or 4350 or 4340 or 4320..

A machine can produce 28 bars of soap in one hour. How many soaps does the machine produce in 10 hours? => 280+10 or 280 or 280-10 or 280-20..

A machine produces bolts, of which 10% are defective. Find the probability that in a random sample of 400 bolts produced by the machine, between 35 and 45 will be defective. Assume a standard deviation of 6. => 0.5640 or 0.6405 or 0.4605 or 0.4560..

A machine produces 10 nuts per hour in a factory. Which graph shows the relationship between the number of hours and the nuts produced? => Graph 3 or Graph 2 or Graph 1 or Graph 4..

A manufacturer makes two models A and B of a product ,each should be processed by two machines. To complete one unit of model A, machines I and II must work 1 hour and 2 hours respectively. To complete one unit of model B, Machine I and II must work 4 hours and 2 hours..

A manufacturer makes two models A and B of a product ,each should be processed by two machines. To complete one unit of model A, machines I and II must work 1 hour and 2 hours respectively. To complete one unit of model B, Machine I and II must work 4 hours and 2 hours..

A contractor hires a mortar mixing machine for 5 months and a heavy vehicle for transporting the raw material for 10 months by paying a total rent of $1650. He pays a total rent of $1560 for hiring the machine for 8 months and the vehicle for 7 months for another job. ..

The sales of a local electronic goods store in a particular month is shown in the bar graph. What was the difference between the sales of washing machines and refrigerators in that month? => 40 or 10 or 30 or 20..

A field survey shows the lifetime (in years) of a particular model of a washing machine in the frequency distribution table. Lifetime of washing machines Number of washing machines 0 - 2 5 2 - 4 16 4 - 6 13 6 - 8 7 8 - 10 5 10 - 12 4 Find the varian..

A shirt manufacturing company wanted to check for the number of defective shirts being produced out of a total of 100 shirts by 10 different machines in two consecutive days. The data obtained is shown here. Machines 1 2 3 4 5 6 7 8 9 10 Day I 3 7 2 4 5 1 8 4..