Math
মোট 1015 টি প্রশ্ন
- 481 The average of 6 numbers is 25. If 3 more numbers, with an average of 22 are added to these numbers, what will be the average of the combined 9 numbers?
- 482 The interest charged on a loan is p dollars per $1,000 for the first month and q dollars per $1,000 for each month after the first month. How much interest will be charged during the first three months on a loan of $10,000?
- 483 The Roman numeral M stands for what ?
- 484 There are 4 cows and 4 goats in a field. If two of the animals are selected at random, what is the probability that both will be cows?
- 485 The average of a, b, c is 6 and a – b = 4, ab = 21, What is the value of c?
- 486 The interest charged on a loan is p dollars per $1,000 for the fist month and q dollars per $1,000 for each month after the first month. How much interest will be charged during the first three months on a loan of ,000?
- 487 The selling price of 8 shirts is equal to the purchase price of 10 shirts . What is the profit margin ?
- 488 There are 5 doors to a lecture room. In how many ways can a student enter the room through a door and leave the room by a different door?
- 489 The average of the smallest and largest primes between 60 and 80 is –
- 490 The interest on a certain deposit at 4.5% p.a is taka 202.50 in one year. How much will the additional interest in one year be on the same deposit at 5% p.a?
- 491 The simple interest received on a sum of money at the end of 10 years is two times of the principal. At the same rate of interest, what would be the ratio of principal and compound interest received at the end of two years?
- 492 There are two numbers where the sum of twice the first number and thrice the second number is 100. And the sum of thrics the first number and twice the second number is 120. Which is the largest number?
- 493 The average temperature for the first 4- days of a week is 40.2-degree Celcius and that of the last 4 days is 41.3-degree Celcius If the average temperature for the whole week is 40.6-degree Celcius then the temperature on the fourth day is-
- 494 The length of a rectangle is twice than that of its breadth. If the length of the rectangle is increased by 10%, while its breadth is decreased by 10% what is the percentage change in the perimeter?
- 495 The sum of 3 consecutive integers is less than 75. What is the greatest possible value of the smallest one?
- 496 There are two stations of length 162 meters and 120 meters respectively. A train takes 18 seconds to pass first station and 15 seconds to pass another station. Determine the length of the train?
- 497 The average weight of 17 students is 90kg. If the weight of teacher is also included, then the average weight is increased by 200 grams. Find the weight of the teacher?
- 498 The length of a rectangular plot is 20 meters more than its breadth. If the cost of fencing the plot’ @ Tk. 26.50 per meter is Tk. 5,300 what is the length of the plot in meters?
- 499 The sum of principal and simple interest of a certain amount of money would be Tk. 460 after 3 years from now and Tk. 500 after 5 years from now. What is the total interest rate?
- 500 Three boys have marbles in the ratio of 19 : 5: 3. If the boy with the least number has 9 marbles, how many marbles does the boy with the greatest number have?
- 501 The average weight of 3 friends is 33 kg. None of the friends weights less than 31 kg . What can be the maximum weight of any three friends ?
- 502 The mean of the data set of 1000 items is 5. From each item 3 is subtracted and then each number is multiplied by 2. The new mean will be-
- 503 The sum of squares of 3 consecutive integers is less than 97. What is the greatest possible value of the smallest one?
- 504 Three boys have marbles in the ratio of 19: 5: 3. If the boy with the least number has 9 marbles, how many marbles does the boy with the highest number have?
- 505 The base of an isosceles triangle is 6 cm and one of the equal sides is 12 cm. Find the radius of the circle through the vertices of the triangle?
- 506 The measurement of a rectangle is 16 feet by 12 feet. What is the area of the smallest circle that can cover this rectangle entirely (so that no part of the rectangle is outside the circle)?
- 507 The sum of the square of a number and 12 times the number is -27. What is the smaller possible value of this number?
- 508 Three dice are thrown together. Find the probability of getting a total of at least 6?
- 509 The compound interest on TK. 10,000 for 4 years @ 5% per annum will be approximately
- 510 The next number of the sequence is- 4 3 9 3 19 3
