Explanation:

Idark buys 80 kg sugar at Taka 40 per kg and 40 kg rice at Taka 50 per kg. At what price approximately in taka per kg of rice and sugar should he sell to make a profit of 10% on cost? Correct Answer 47.7 Buying price of sugar = 80*40 = 3200tkBuying price of rice = 40*50 = 2000tkTotal Buying price = 3200+2000 = 5200tkBuying price in taka per kg = 5200/(80+40) = 5200/120 = 43.333So, selling price in taka per kg to make 10% profit = (43.333*110)/100 = 47.7 (Ans)

Explanation:

The length of a rectangular room is double of its breath. If the area is 512 square inches, what is the perimeter (in feet)? Correct Answer 8      Let, breath = x inch           length = 2x inch   now,  2x*x = 512              x = 16 inchSo, the perimeter is = 2(2x+x) = 2*3x = 6x = 6*16 = 96 inch = 8 feet (Ans)

Explanation:

In a group of 15,7 have studied Latin, 8 have studied Greek and 3 have not studied either. How many of these studied both Latin and Greek? Correct Answer 3 Total Student = Have studied Latin + Have studied Greek - Have not studied either + have studied both latin and greek             15 = 7 + 8 - 3 + P             P = 15 - 7 - 8 +3             P = 18-15            P = 3 (Ans)

Explanation:

If a+b+c=12, a+b=4, and a+c=7 what is the value of a ? Correct Answer -1    a+b+c = 12   a+b = 4(Doing Subtraction), we get, c = 12-4 = 8Now, a+c = 7             a = 7-c = 7-8 = -1 (Ans)

Explanation:

A cricket team has won 40 games out of 60 played . It has 32 more games to play. How many of these must the team win to make it record 70% win for the season? Correct Answer 25 Total Match = 60+32 = 92For making 70% record, they have to win = 92*70 = 64.4 gamesSo, they must to win = 64.4-40 = 24.4 or 25 (Ans)

Explanation:

3 pums, working 8 hours a day, can empty a tank in 2 days. How many hours a day must 4 pumps work to empty the tank in 1 day? Correct Answer 12        3 Pumps empty a tank in 2 days = by working 8 hours       3 Pumps empty a tank in 1 days = by working (8*2) hours       1 Pumps empty a tank in 1 days = by working (8*2*3) hoursSo, 4 Pumps empty a tank in 1 days = by working (8*2*3)/4 hours                                                                                      =  12 hours (Ans)

Explanation:

A glass when full of milk weight one kg. When half full, it weights 3/4 kg, . What is the weight (in kg) of the empty glass? Correct Answer 0.50                   glass + milk     = 1 kg                   glass + milk/2 = 3/4 kg(Doing Subtraction),  milk-milk/2 = 1 - 3/4                                                   milk/2 = 1/4                                                  milk = ½ = 0.5 kg                So,   weight of empty glass = 1 kg - 0.5 kg = 0.5 kg (Ans)

Explanation:

If two angles are said to be complementary angles and one angle is 52 degrees, then the other angle is: Correct Answer 38 Complementary angle = পূরক কোণআমরা জানি, দুইটি কোণের সমষ্টি ৯০ ডিগ্রি হলে, একটিকে অন্যটির পূরক কোণ বলেSo, the other angle is = 90-52 = 38 degree (Ans)

Explanation:

What is the next term in the sequence 4,9,6,11,8,13......? Correct Answer 10 4, 9, 6, 11, 8, 13, 10Here the difference is 2, in every odd position

Explanation:

Which file extensions indicate ony graphics files ? Correct Answer BMP : and GIF BMP - Windows Paint simple to use format, good quality but large files. CLP - Clip Art for including in drawings, documents etc. CHT, CH3, PR4 - Harvard Graphics presentation graphics. JPEG, JPG or JPE - a very common format frequently used for photographs. Allows for compression to save on file size but high compression results in loss of quality. GIFF - commonly used for Internet graphics, eg on websites. Reasonable quality, compression. Originally created by Compuserve).

Explanation:

Select the lettered pair that has the same relationship as the original pair of words : Heart : Cardiology Correct Answer Fossil : palaeontology Heart (হৃৎপিণ্ড) বিষয়ক বিদ্যা হলো cardiology (হৃদবিজ্ঞান) ঠিক তেমনি fossils (জীবাশ্ম) বিষয়ক বিদ্যা হলো palaeontogy (জীবাশ্মবিজ্ঞান)।

Explanation:

Select the lettered pair that has the same relationship as the original pair of words : Wet : Dry Correct Answer Scold : praise Wet (আর্দ্র) এর বিপরীত শব্দ dry (শুষ্ক) এবং scold (তিরস্কার করা) এর বিপরীত শব্দ praise (প্রশংসা করা) ।

Explanation:

Select the lettered pair that has the same relationship as the original pair of words : Shield : Soldier Correct Answer Helmet : rider Soldier (সৈনিক) আত্মরক্ষার জন্য shield (বর্ম বা ঢাল) ব্যবহার করে ঠিক তেমনি rider (আরহী) আত্মরক্ষার জন্য helmet (শিরস্ত্রাণ) ব্যবহার করে।

Explanation:

Select the lettered pair that has the same relationship as the original pair of words : Ashes : Fire Correct Answer Relics : civilisation Fire (আগুন) যেমন ashes (ছাই বা ভস্ম) তৈরি করে ঠিক তেমনি civilisation (সভ্যতা) তৈরি করে relics (অতীতের ধ্বংসাবশেষ)।

Explanation:

The speeds of three cars are in the ratio 2 : 3 : 4. The ratio of the times taken by these cars to travel the same distance is ---- Correct Answer 6 : 4 : 3 ধরি, ১ ম গাড়িটির গতিবেগ 2x km/hr ধরি, ২ ম গাড়িটির গতিবেগ 3x km/hr ধরি, ৩ ম গাড়িটির গতিবেগ 4x km/hr এর দূরত্ব P km গাড়িগুলোর প্রয়োজনীয় সময়ের অনুপাত = Px:P3x:P4x =  12:13:14 = (12×12):(13×12):(14×12) = 6 : 4 : 3

Explanation:

If 60% of A = 3/4 of B, then A : B is ----- Correct Answer 5 : 4 60% of A = 34 of B ⇒60100×A = 34×B ⇒35×A = 34×B ⇒AB = 1512 ⇒AB = 54 ∴ A: B = 5 : 4

Explanation:

If an article is sold at 200 percent profit, then the ratio of its cost price to selling will be ---- Correct Answer 1 : 3 ধরি, ক্রয়মূল্য 100 টাকা ∴ profit (100 এর 200%) = (100 এর 200100) টাকা = 200 ∴ বিক্রয়মূল্য = (200 + 100) টাকা = 300 ∴ ক্রয়মূল্য : বিক্রয়মূল্য = 100 : 300 = 1 : 3

Explanation:

In 2005 the number of square kilometer per 100 motor vehicles in country C was approximately . Correct Answer 0.29 ক্রেডিট কার্ড, ডেবিড কার্ড ইত্যাদিকে মুলত প্লাস্টিক মানি বলা হয়।