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Directions For Questions
Following data are of the total manpower in the production unit
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What is the average number of people working in the Press-L from the year 1999 to 2004?
Average = (Total number of the persons)/ (Number of years)
=2315/6 = 385.84
The number of persons working in the advanced unit is how much percentage more than that of number of persons working in the fabrication unit?
The number of persons working in the unit in year 2001 was how much more than its previous year?
In 2001 the number of person = 830
And in its previous year 2000 = 522
830 – 522 = 308
Find the value
If a + 1/a = 4 then a4 + 1/a4 = ?
If 578 and 245 are multiplied, from the product we get, a new number is formed using the unit digit and the tenth digit, then what is that number?
578 = 172×2
245 = 72 ×5
To get one zero, we need a pair of 2 and 5, after that 289and 49, when they are multiplied we will get 1 as unit digit.
85.71%of 140% P2 = 1080. Then p will be equal to
Find the average of the following numbers 2095, 2089, 2091,2077, 2073 and 2097?
Average can be found out by summing up all these numbers and dividing by 6.
But here it may become tedious; here we have to adopt deviation method.
Here we have to assume a number that is easier for calculation and assume it as average, and then we will calculate the deviation of each number from the assumed average and find the average of deviation and either add or subtract from the assumed average.
Let us assume the average to be 2085, then
Sum of the deviations = 10 + 4 + 6 – 8 – 12 + 12 = 12
Average of deviation = 12/6 = 2
Hence the average = 2085 + 2 = 2087
The HCF and LCM of two numbers are 3780 and 113400, if one of the numbers is 7560, then find the other number?
Product of the numbers is equal to the product of their HCF and LCM. Hence
37840×113400 = 7560 × number2
Number2 = 56700
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