Question
Average of 20 numbers is 90. Average of first 8 numbers
is 103 while average of last nine numbers is 40. If ninth number is 25% less than the tenth number which is equal to the eleventh numbers then find the tenth number.Solution
Sum of ninth, tenth and eleventh number = 20 × 90 – 8 × 103 – 9 × 40 = 616 Let tenth number = x = eleventh number So, ninth number = 0.75 × x = 0.75x So, x + 0.75x + x = 616 Or, 2.75x = 616 Or, x = 224
What is the difference between the expenditure on players by BCCI and that of Cricket Australia?
The following pie-chart and table show the percentage distribution of farmers in 5 states A, B, C, D & E of a country who claimed insurance due to drou...
In how many years is the income from Domestic flights less than the average income the Domestic flights in all the given years together?
If in 2018, the population of Dehradun is increased by 20% and the population of Chennai is reduced by 10% from 2016 and the population of Chennai in 2...
If the total number of Players under BCCI is 280 then what is the average salary of the Players under BCCI?
The expenditure on Ground Maintenance by Cricket Australia is what per cent more than that on the same by BCCI?
How many players enrolled for Athletics and Handball are females?
If the number of students passed in Business is increased by 30 and the number of students passed in Accounts is decreased by 30, then the number of stu...
The given pie-chart represents the distribution of the percentage of sales of a particular brand of car from five showrooms A. B. C. D and E during 2018...
If 1/3 rd of the students who passed in Business are girls, then the total number of students passed in Economics is what percent of the number of boys ...
