A 240-meter long train crosses a pole in a platform in 8 seconds . Determine the speed of the train in km/hr.
A form sorting machine can sort 12 forms in 10 minutes. How many forms can it sort in one and half hours at this rate ?
The average of 100 observations in a study was calculated as 49.7 . Later it was revealed that one of the observations was misread as 64 instead of 94. What will be the correct average ?
Selim deposited a total of taka 120,000 in two savings accounts for one year. One account offered him 8% interest and the other 10% . If he earned taka 10,000 as interest, how much did he deposit at 8% ?
If the purchasing price of 15 apples and selling price of 12 apples are the same then how much is the gain in percentage form ?
Farhana deposited TK.10,000 in a Bank at 13.25% interest rate compounded annually. At the end of the second year, the total amount including interest will become how much ?
A bookseller can gain 6.666% if he offers a 20% commission on the written selling price of a book. If the commission is reduced to 10% , what will be his gain ?
Which of the following fractions is smaller than 8/9 and greater than 2/5 ?
If the sum of (8, 5 and x ) is 21, then the average of (8, 5 and x ) is -
Six years from now the combined age of father and son will be 54. If, currently , son is 5 times younger than his father then what is the present age of the father ?
A watermelon is divided into 18 equal pieces. If Naz takes 1/3 of the watermelon and Sarah takes 1/3 of the rest that are left, how many pieces are still left ?
The ratio between the length and breadth of a field is 7:5. The perimeter of the field is 360 meter. What is the area of the field ?
Roman covers 17 kilometer in 5 hours . How much time does he need to cover 10.2 kilometer ?
Arif incurred a loss of 25% by selling a used mobile phone set at taka 1500. How much could he gain/lose by selling that 2200 taka ?
Rumi and Rony can finish a task, working together, in 12 days. If Rony alone can finish that in 20 days, how many days will Rumi need to finish the task working alone ?
The average age of 40 employees in a branch of a bank is 35 years . When a new employee joined the bank the average age increased to 35.5 years. What is the age of the new employee ?
What should be added with 15480 to make it exactly divisible by 14 ?
People use Sedan car and Micro bus for only personal usage . Of all the automobiles sold during that period what percent will be used solely for personal usage?
what is the difference between the percentage sales of Bus and Truch in Dhaka region ?
what should be added with 15480 to make it exactly divisible by 14?
If a, b, and c are consecutive integers and aabc3 is an integer III. (b-c)=1
In the figure below, if the ratio of x to y is 11 : 7 , then y =?
If you add up the digits of a three -digit number you get 18 . The ten's digit is twice the hundred's digit and the hundred's digit is 13 the unit's digit. What is the number?
50% of the people in an area read Ittefaq and 60% of the people in that area read Prothom Alo. 20% people read both the newspapers. What percent of people do not read any of the newspapers ?
If 6 workers can complete 1 identical job in 3 days, how long (in days) will it take 4 workers to complete 10 such jobs ?