Subject Mathematics
1326. A car travels 15 meters in one second. What is the speed of the car per hour in kilometer? Ans. 1327. What is the next digit of the series 1, 2, 3, 5, 7, .......? Ans. 1328. Let x : y = 3 : 4 and x : z = 6 : 5, then z : y = is? Ans. 1329. There are 900 students in a school. 4% of them left the school and 50% of the remaining are girls. How many girls remained? Ans. 1330. If x 2 + y 2 = 4 and x 2 - y 2 = -4 then x 4 + y 4 is - Ans. 1331. The minimum value of 2 x 2 + 8x – 5 is 13 2 Ans. 1332. If the market price is Tk. 25, the revenue of selling five units in Taka is Ans. 1333. There are 12 more apples than oranges in a basket of 36 apples and oranges. How many apples are in the basket? Ans. 1334. Bina is 10 years older than Mim. In 7 years time, Bina will be twice as old as Mim. What is Bina’s age now? Ans. 1335. If product of 3 consecutive integers is 120, then the sum of the integers is - Ans. 1336. If 15 is the fifth number in a series of 5 consecutive odd numbers, what is the third number in the series? Ans. 1337. The difference of two numbers is 7 and their product is 60, then one of the two numbers must be Ans. 1338. A woman had 50 ducks. All but 8 died. How many ducks are still alive? Ans. 1339. Reza’s average in four tests is 80%. What marks does he need in his fifth test to raise his average to 84%? Ans. 1340. Which fraction is the largest? 9 16 7 10 4 5 5 8 Ans. 1341. A 5% monthly salary increase resulted in a salary increase resulted in a salary increase of Tk. 6000 per year for an employee. What was his monthly salary before the increase? Ans. 1342. If the sum of the 3 consecutive integers is 240, then the sum of the two larger integers is: Ans. 1343. Rice is now being sold at Taka 20 a kg. during last month its rate was Taka 16 per kg. By how much percent should a family reduce its consumption so as to keep the expenditure fixed? Ans. 1344. What is the smallest number exactly divisible by each of 12, 15, 20 and 27? Ans. 1345. What is the square root of 0.00000081? Ans. 1346. What is the ninth term of the sequence 0, 3, 8, 15, 24, 35, ........? Ans. 1347. What is the wrong number in the following series: 1, 23, 144, 64, 49? Ans. 1348. The sum of Rahim’s age and his son’s age is 55 years. 5 years ago Rahim’s son was 29 years younger than Rahim. What is the son’s present age? Ans. 1349. What is the value of (m + n) 2 - x 4 - (m - n) 2 m 2 n 2 m 2 - n 2 Ans. 1350. 50 minutes ago it was 45 minutes past 4 o’clock. How many minutes is it until six o’clock? Ans.