Subject Mathematics
326. At a party, everyone shook hands with everybody else. There were 66 handshakes. How many people were there in the party?
(a) 13
(b) 11
(c) 10
(d) 12
(e) None of them
Ans. d
327. The sum of ages of 5 children born at the intervals of 3 years each is 50 years. What is the age of the youngest child?
(a) 3
(b) 4
(c) 5
(d) 6
(e) None of them
Ans. b
328. The difference between a two-digit number and the number obtained by interchanging the positions of its digits is 36. What is the difference between the two digits of that number?
(a) 4
(b) 2
(c) 10
(d) 16
(e) None of them
Ans. a
329. Pick the odd one out - 331,482,551,263,383,242,111
(a) 263
(b) 383
(c) 242
(d) 111
(e) None of them
Ans. d
330. One third the sum of 13 and a certain number is the same as one more than twice the number. Find out the number.
(a) 6
(b) 2
(c) 5
(d) 3
(e) None of them
Ans. b
331. After replacing an old member by a new member, it was found that the average age of five members of a club is the same as it was 3 years ago. What is the difference between the ages of the old and the new member?
(a) 15 years
(b) 8 years
(c) 4 years
(d) 2 years
(e) None of them
Ans. a
332. In an election a candidate who get 84% of the votes is elected by majority of 476 votes. What is the total number of votes polled?
(a) 672
(b) 700
(c) 749
(d) 848
(e) None of them
Ans. e
333. A man ate 100 bananas in five days, each day eating 6 more than the previous day. How many bananas did he eat on the first day?
(a) 6
(b) 7
(c) 10
(d) 8
(e) None of them
Ans. d
334. একটি 48 মিটার লম্বা খুঁটি ভেঙ্গে গিয়ে সম্পূর্ণভাবে বিচ্ছিন্ন না হয়ে ভূমির সাথে 30 কোণ উৎপন্ন করে। খুঁটিটি কত উঁচুতে ভেঙেছিল?
(a) 14
(b) 18
(c) 16
(d) 20
Ans. c
335. log2+log4+log8+......ধারাটির প্রথম দশটি পদের সমষ্টি কত?
(a) 45 log2
(b) 55 log2
(c) 65 log2
(d) 75 log2
Ans. b
336. 1+2+3+4+........99 = কত?
(a) ৪৬৫০
(b) ৪৭৫০
(c) ৪৪৫০
(d) ৪৯৫০
Ans. d
337. x 2 -11x+30 এবং x 3 -4 x 2 -2x-15 . এর গ.সা.গু কত?
(a) x-5
(b) x-6
(c) x 2 +x+3
(d) x 2 -x+3
Ans. a
338. x+ 1 x =√3 হলে x 3 + 1 x 3 এর মান কত?
(a) 2
(b) 4
(c) 0
(d) 6
Ans. c
339. 21. A book sells for Tk. 65%.This price gives the seller a profit of 30% on his cost. what would be the new selling price if he cuts his profit to 10% of the cost.
(a) 55%
(b) 50%
(c) 45%
(d) 40%
Ans.
340. 22. At simple interest rates of 10% per year, how many years will it take for a principal amount of Tk. 500 to earn an interest amount of Tk. 100?
(a) 3
(b) 2
(c) 2 1 2
(d) Cannot be determined
Ans. c
341. 23. Sum of two numbers is 15 and their difference is 13. Identify the smaller number.
(a) 1
(b) 2
(c) 14
(d) 18
Ans. a
342. 24. For a 20% decrease in the radius of a circle, what will be the percentage reduction in its area?
(a) 10%
(b) 20%
(c) 36%
(d) 400%
Ans. c
343. Of the following, which is the greatest?
(a) 126 250
(b) 49 100
(c) 1 2
(d) 7 15
Ans. a
344. 0.03 times of 0.05 is -----
(a) 15
(b) 0.15
(c) 0.015
(d) 0.0015
Ans. d
345. If 1 y = 3 1 2 , then 1 y+2 =?
(a) 7 16
(b) 2 7
(c) 2 11
(d) None of these
Ans. a
346. A train took 6 minutes to travel between two stations 4 miles apart. what was the speed of the train in miles per hour
(a) 35
(b) 45
(c) 30
(d) 40
Ans. cd
347. For (a+b)=7 and ab= 12, (a-b)=?
(a) 2
(b) 3
(c) 1
(d) 4
Ans. c
348. Mr. X lost a wallet containing Tk. 120, Incidentally, he had only notes of Tk.2 and Tk. 5 denominations in the wallet. If the total numbers of notes was 30, how many Tk. 5 denomination notes did he have?
(a) 18
(b) 16
(c) 15
(d) 20
Ans. c
349. How much fence (in meter) will be needed to enclose a rectangular field that is 600 cm wide and 3000 cm long?
(a) 144
(b) 72
(c) 240
(d) None of these
Ans. b
350. x 2 - y 2 =?
(a) (x-y) (x-y) 2
(b) (x-y) 2 - 2xy
(c) (x-y)(x+y)
(d) Both a and b
Ans. c