ওয়েব স্কুল বিডি : শিক্ষার্থী বন্ধুরা, শুভেচ্ছা নিয়ো। আজ তোমাদের
Important Math for Bank Recruitment Exam (Part 3)
' থেকে (1-20) টি প্রশ্ন ও উত্তর নিয়ে আলোচনা করা হলো -
অনলাইন এক্সামের বিভাগসমূহ:
জে.এস.সি
এস.এস.সি
এইচ.এস.সি
সকল শ্রেণির সৃজনশীল প্রশ্ন (খুব শীঘ্রই আসছে)
বিসিএস প্রিলি টেষ্ট
বিশ্ববিদ্যালয় ভর্তি (খুব শীঘ্রই আসছে)
Important Math for Bank Recruitment Exam (Part 3)
গণিতশাস্ত্র সমাধানের শর্টকাট টেকনিক দেওয়া আছে. আমি আশা করি আপনি ঐ গণিতশাস্ত্র অনুশীলন করবে. আপনি মূল কোনো বিশেষ গণিত সমাধান চান? তাহলে মন্তব্য বিভাগে আপনার প্রয়োজন, অনুগ্রহ করে লিখুন. আমি আমার যথাসাধ্য চেষ্টা আপনি সমাধান দিতে মামুন স্যার থেকে সাহায্য পেতে ডায়াল 01915427070
1) If a merchant offers a discount of 30% on the list price, then she makes a loss of 16%. What % profit or % loss will she make if she sells at a discount of 10% of the list price?
a) 6.25% loss
b) 6% loss
c) 0.8% profit
d) 8% profit
Correct Answer (d) 8% profit
Shortcut Solve: 120X30% =36; 120-36=84=16%; 120X10%=12; 120-12=108; so 8% Profit.
2) A merchant marks his goods up by 60% and then offers a discount on the market price. If the final selling price after the discount results in the merchant making no profit or loss, what was the percentage discount offered by the merchant?
a) 60%
b) 37.5%
c) 40%
d) Depends on the cost price
Correct Answer (b) 37.5% discount.
Shortcut Solve: 160X37.5 = 60; Product Price 160-60 = 100
3) Rs.432 is divided amongst three workers A, B and C such that 8 times A’s share is equal to 12 times B’s share which is equal to 6 times C’s share. How much did A get?
a) Rs.192
b) Rs.144
c) Rs.133
d) Rs.128
Correct Answers (b) Rs.144.
Shortcut Solve: LCM 8:2:6 =24; 24/8:24/12:24/6 = 3:2:4; 3x+2x+4x = 432; 3x= 432; x = 48; so A gets 3X48 = 144
4) The monthly incomes of A and B are in the ratio 4 : 5, their expenses are in the ratio 5 : 6. If 'A' saves Rs.25 per month and 'B' saves Rs.50 per month, what are their respective incomes?
a) Rs.400 and Rs.500
b) Rs.240 and Rs.300
c) Rs.320 and Rs.400
d) Rs.440 and Rs.550
Correct Answer (a) Rs. 400 and Rs. 500
Shortcut Solve: 4x-5y = 25; x = 25+5y/4; 5x-6y=50; 5X25+5y/y=50; y=75; x= 25+5XZ75/4; x = 100; Income 4X100 = 400 and 5 X 100 = 500.
5) The monthly salaries of two persons are in the ratio of 4:7. If each receives an increase of tk.25 in the salary, the ratio is altered to 3: 5. Find their respective salaries.
(দুই ব্যক্তির মাসিক বেতন অনুপাতে 4:7. প্রতিটি বেতন tk.25 বৃদ্ধি পায়, অনুপাত রদবদল হয় 3:5. তাদের নিজ নিজ বেতন কত পাবেন?)
a) 120 & 210
b) 80 & 140
c) 180 & 300
d) 200 & 350
Correct Answer (d) 200 &350
Shortcut Solve: 4x+5y/7x+25 = 3/5; 5(4x+25) = 3 (7x + 25); 20x + 125 = 21x + 75; x = 50; so Salary 4X50= 200 and 7X50 = 350
6) The present ages of A and B are as 6 : 4. Five years ago their ages were in the ratio 5 : 3. Find their present ages.(A এবং B এর বর্তমান বয়সের অনুপাত 6:4.পাঁচ বছর আগে তাদের বয়সের অনুপাত 5:3 ছিল. তাদের বর্তমান বয়স কত?)
a) 42, 28
b) 36, 24
c) 25, 15
d) 30, 20
Correct Answer ( d) 30, 20
Shortcut Solve: 6X5 = 30; 4X5 = 20 so 30, 20; 30-5: 20-5; 25:15; 5:3
7) A 20 litre mixture of milk and water contains milk and water in the ratio 3 : 2. 10 litres of the mixture is removed and replaced with pure milk and the operation is repeated once more. At the end of the two removal and replacement, what is the ratio of milk and water in the resultant mixture?
a) 17 : 3
b) 9 : 1
c) 3 : 17
d) 5 : 3
Correct Answer (b) 9:1
Shortcut Solve: 3/5 X 10 = 6; 2/5 X 10 = 4; 10+6 : 4 = 16 : 4 = 4:1; 4/5 X10 = 8; 1/5 X 10 = 2; 10 + 8 : 2 = 18 : 2 = 9: 1
8) A merchant mixes three varieties of rice costing Rs.20/kg, Rs.24/kg and Rs.30/kg and sells the mixture at a profit of 20% at Rs.30 / kg. How many kgs of the second variety will be in the mixture if 2 kgs of the third variety is there in the mixture?
a) 1 kg
b) 5 kgs
c) 3 kgs
d) 6 kgs
Correct Answers (b) 5 kg Shortcut Solve: 20:5X24:2X30 = 20:120:60= 200; 200/8 = 25; 25 X 20% = 5; so 25 +5 = 30; Answers is 5
9) How many kgs of Basmati rice costing Rs.42/kg should a shopkeeper mix with 25 kgs of ordinary rice costing Rs.24 per kg so that he makes a profit of 25% on selling the mixture at Rs.40/kg?
a) 20 kgs
b) 12.5 kgs
c) 16 kgs
d) 200 kgs
Correct Answer (a) 20 Kgs
Shortcut Solve: 20X42: 25X24 = 840: 600 = 1440/45 = 32; 32X25% = 8; 32+8 = Rs 40; so with the answer (a) it gives correct figure.
10) A zookeeper counted the heads of the animals in a zoo and found it to be 80. When he counted the legs of the animals he found it to be 260. If the zoo had either pigeons or horses, how many horses were there in the zoo?
a) 40
b) 30
c) 60
d) 50
Correct Answer (d) 50
Shortcut Solve: x+y = 80……..(i) ; 2x +4y = 260…….(ii); (i) X4= 4x +4y = 320; 2x = 60 ; x = 30; 30 +y = 80; y = 80 – 30 = 50
Important Math for Bank Exam (Part 4) (1-20)
অনলাইন এক্সামের বিভাগসমূহ:
জে.এস.সি
এস.এস.সি
এইচ.এস.সি
সকল শ্রেণির সৃজনশীল প্রশ্ন (খুব শীঘ্রই আসছে)
বিসিএস প্রিলি টেষ্ট
বিশ্ববিদ্যালয় ভর্তি (খুব শীঘ্রই আসছে)
Important Math for Bank Recruitment Exam (Part 3)
গণিতশাস্ত্র সমাধানের শর্টকাট টেকনিক দেওয়া আছে. আমি আশা করি আপনি ঐ গণিতশাস্ত্র অনুশীলন করবে. আপনি মূল কোনো বিশেষ গণিত সমাধান চান? তাহলে মন্তব্য বিভাগে আপনার প্রয়োজন, অনুগ্রহ করে লিখুন. আমি আমার যথাসাধ্য চেষ্টা আপনি সমাধান দিতে মামুন স্যার থেকে সাহায্য পেতে ডায়াল 01915427070
1) If a merchant offers a discount of 30% on the list price, then she makes a loss of 16%. What % profit or % loss will she make if she sells at a discount of 10% of the list price?
a) 6.25% loss
b) 6% loss
c) 0.8% profit
d) 8% profit
Correct Answer (d) 8% profit
Shortcut Solve: 120X30% =36; 120-36=84=16%; 120X10%=12; 120-12=108; so 8% Profit.
2) A merchant marks his goods up by 60% and then offers a discount on the market price. If the final selling price after the discount results in the merchant making no profit or loss, what was the percentage discount offered by the merchant?
a) 60%
b) 37.5%
c) 40%
d) Depends on the cost price
Correct Answer (b) 37.5% discount.
Shortcut Solve: 160X37.5 = 60; Product Price 160-60 = 100
3) Rs.432 is divided amongst three workers A, B and C such that 8 times A’s share is equal to 12 times B’s share which is equal to 6 times C’s share. How much did A get?
a) Rs.192
b) Rs.144
c) Rs.133
d) Rs.128
Correct Answers (b) Rs.144.
Shortcut Solve: LCM 8:2:6 =24; 24/8:24/12:24/6 = 3:2:4; 3x+2x+4x = 432; 3x= 432; x = 48; so A gets 3X48 = 144
4) The monthly incomes of A and B are in the ratio 4 : 5, their expenses are in the ratio 5 : 6. If 'A' saves Rs.25 per month and 'B' saves Rs.50 per month, what are their respective incomes?
a) Rs.400 and Rs.500
b) Rs.240 and Rs.300
c) Rs.320 and Rs.400
d) Rs.440 and Rs.550
Correct Answer (a) Rs. 400 and Rs. 500
Shortcut Solve: 4x-5y = 25; x = 25+5y/4; 5x-6y=50; 5X25+5y/y=50; y=75; x= 25+5XZ75/4; x = 100; Income 4X100 = 400 and 5 X 100 = 500.
5) The monthly salaries of two persons are in the ratio of 4:7. If each receives an increase of tk.25 in the salary, the ratio is altered to 3: 5. Find their respective salaries.
(দুই ব্যক্তির মাসিক বেতন অনুপাতে 4:7. প্রতিটি বেতন tk.25 বৃদ্ধি পায়, অনুপাত রদবদল হয় 3:5. তাদের নিজ নিজ বেতন কত পাবেন?)
a) 120 & 210
b) 80 & 140
c) 180 & 300
d) 200 & 350
Correct Answer (d) 200 &350
Shortcut Solve: 4x+5y/7x+25 = 3/5; 5(4x+25) = 3 (7x + 25); 20x + 125 = 21x + 75; x = 50; so Salary 4X50= 200 and 7X50 = 350
6) The present ages of A and B are as 6 : 4. Five years ago their ages were in the ratio 5 : 3. Find their present ages.(A এবং B এর বর্তমান বয়সের অনুপাত 6:4.পাঁচ বছর আগে তাদের বয়সের অনুপাত 5:3 ছিল. তাদের বর্তমান বয়স কত?)
a) 42, 28
b) 36, 24
c) 25, 15
d) 30, 20
Correct Answer ( d) 30, 20
Shortcut Solve: 6X5 = 30; 4X5 = 20 so 30, 20; 30-5: 20-5; 25:15; 5:3
7) A 20 litre mixture of milk and water contains milk and water in the ratio 3 : 2. 10 litres of the mixture is removed and replaced with pure milk and the operation is repeated once more. At the end of the two removal and replacement, what is the ratio of milk and water in the resultant mixture?
a) 17 : 3
b) 9 : 1
c) 3 : 17
d) 5 : 3
Correct Answer (b) 9:1
Shortcut Solve: 3/5 X 10 = 6; 2/5 X 10 = 4; 10+6 : 4 = 16 : 4 = 4:1; 4/5 X10 = 8; 1/5 X 10 = 2; 10 + 8 : 2 = 18 : 2 = 9: 1
8) A merchant mixes three varieties of rice costing Rs.20/kg, Rs.24/kg and Rs.30/kg and sells the mixture at a profit of 20% at Rs.30 / kg. How many kgs of the second variety will be in the mixture if 2 kgs of the third variety is there in the mixture?
a) 1 kg
b) 5 kgs
c) 3 kgs
d) 6 kgs
Correct Answers (b) 5 kg Shortcut Solve: 20:5X24:2X30 = 20:120:60= 200; 200/8 = 25; 25 X 20% = 5; so 25 +5 = 30; Answers is 5
9) How many kgs of Basmati rice costing Rs.42/kg should a shopkeeper mix with 25 kgs of ordinary rice costing Rs.24 per kg so that he makes a profit of 25% on selling the mixture at Rs.40/kg?
a) 20 kgs
b) 12.5 kgs
c) 16 kgs
d) 200 kgs
Correct Answer (a) 20 Kgs
Shortcut Solve: 20X42: 25X24 = 840: 600 = 1440/45 = 32; 32X25% = 8; 32+8 = Rs 40; so with the answer (a) it gives correct figure.
10) A zookeeper counted the heads of the animals in a zoo and found it to be 80. When he counted the legs of the animals he found it to be 260. If the zoo had either pigeons or horses, how many horses were there in the zoo?
a) 40
b) 30
c) 60
d) 50
Correct Answer (d) 50
Shortcut Solve: x+y = 80……..(i) ; 2x +4y = 260…….(ii); (i) X4= 4x +4y = 320; 2x = 60 ; x = 30; 30 +y = 80; y = 80 – 30 = 50
Important Math for Bank Exam (Part 4) (1-20)
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Bank Math