The average mark obtained by 10 students was 6 and the average mark obtained by 6 students was 10. What is the average mark obtained by all 16 students ?
If the product of 3 consecutive integers is 120, the sum of the integers is -
A parking garage rents parking spaces for TK. 10 per week of TK. 30 per month . How much does a person save in a year by the month rather than by the week ?
How much interest will TK. 1,000 earn in one year at an annual interest rate of 8% if interest rate is compounded every c months ?
A man travels a certain distance at a rate of 20 miles an hour and returns at the rate of 30 miles an hour . What is the average speed ?
A book sells for Tk. 65. This price gives the seller a profit of 30% on his cost. What will be the new selling price if he cuts his profit to 10% of its costs ?
The average age of 6 boys of a team led by Karim is 8.5 and if Karim is dropped the average age of the remaining boys will be 7.2. What is the age of Karim ?
35% of Tahia's income is equal to 25% of Noria's income . The ratio of their income is --.
A students first reduced a number by 20% and then increased it again by 20% . If the difference between the two new figures was 8, then the original number was -
If 4 is subtracted from one-fourth of a number, the result is 20. Which of the following is the number ?
The difference between two numbers is 7 and their product is 60, then one of the two numbers must be __.
of the following which is the best approximation to 0.0026?
If 14 of the trust fund us invested in the stock of BOC, 14 is invested in Beximco debenture ,15 in ICB muturak Fund and the rest TK. 100,000 in defence Bond, What was the size of the fund?
Of the following which is greater?
If a =27,b=13, x=18, the value of y=a-3b+16x is
If y=5x2-2x and x=3, then y=?
The sum of three digits x, y and z is 12 . What is the largest 3-digit number that can be found using each of the digits exactly once ?
If four triangles are constructed with sides of the length indicated below , which of the following triangles will not be a right triangle ?
In a group of people solicited by a charity , 30% contributed TK. 40 each, 45% contributed TK. 20 each and the rest contributed TK. 12 each . What percentage of the total contributed came from people who gave TK. 40 ?
If 6-4x⩽14 than