গাণিতিক যুক্তি
মোট ১৯৫৮২ টি প্রশ্ন · উত্তর ও ব্যাখ্যাসহ · বিনামূল্যে
১৮৬৬১–১৮৬৮০ দেখানো হচ্ছে, মোট ১৯৫৮২ টির মধ্যে
- A tyre has two punctures. The first puncture alone would have made the tyre flat in 9 minutes and the second alone would have done it in 6 minutes. If air leaks out at a constant rate, how long does it take both the punctures together to make it flat ? MCQ
- Mamun can do a piece of work in 24 days. Robin can do the same work in 30 days and Tonmoy in 40 days. Mamun and Tonmoy worked for 4 days and handed it to Rakesh. Robin worked for some days and handed it again to Mamun and Tonmoy 6 days before completing the work. For how many days did Robin work? MCQ
- Ratul and Sajib were classmates. Their earnings now are in the ratio 5:6. The ratio of their expenses is 7:9. Sajib saves Tk. 3,000 every month while Ratul saves Tk. 1000/- more than Somesh. Find the total earnings and expenses of each of them. MCQ
- a : b = 3 : 4 and b : c = 9 : 7. What is a : b : c? MCQ
- Rimon saves Tk. 3395 from his salary. He needs to pay this money as a milk bill, electricity bill and mobile phone bill in the ratio 42 : 32 : 23. Find the money to be paid for each bill. MCQ
- Raju and Saju were carrying some money such that their money was in the ratio 3 : 8. A friend gives each of them Tk. 5 and their money is now in the ratio 2 : 5. Which is the smaller money of the two? MCQ
- A mixture contains alcohol and water in the ratio 4 : 3. If 5 liters of water is added to the mixture, the ratio becomes 4: 5. Find the quantity of alcohol in the given mixture. MCQ
- Three numbers A, B and C are in the ratio of 12 : 15 : 25. If sum of these numbers is 312, ratio between the difference of B and A and the difference of C and B is – MCQ
- Out of three positive numbers, the ratio of the first and the second numbers is 3 : 4 that of the second and the third numbers is 5 : 6 if the product of the second and the third numbers is 4320. What is the sum of three numbers? MCQ
- Two numbers are in the ratio of 21 : 26. If 8 is added in each, the new numbers are in ratio of 5 : 6. Find the ratio of numbers, if 6 is subtracted from each number? MCQ
- If A varies directly as B and inversely as C and A = 6, when B = 2 and C= 3, what is the value of A when B = 8 and C = 6? MCQ
- The income of Asim, Shakil and Riaz is in the ratio of 12 : 9 : 7 and their spendings are in the ratio 15 : 9 : 8. If Asim saves 25% of his income. What is the ratio of the savings of Asim, Shakil and Riaz? MCQ
- Robi invests Tk. 40,000/- in a car wash center and starts a business. After 4 months, Rasel joins the business with an investment of Tk.50,000. At the end of the year, they make a profit of Tk. 1,87,000/-. What will be Rasel's share in this profit? MCQ
- Three friends A, B and C invest in a business in the ratio 6 : 4: 10 respectively. They share the profit in the ratio 8 : 7 : 9 respectively. Find the ratio of time periods of their investment. MCQ
- A starts a flower shop with an investment Tk. 8000. After 3 months B joins him with an investment of Tk. 16000. C joins them later with an investment of Tk. 40,000/-. The business prospers and makes a profit of Tk. 1,12,000/- at the end of the year. If profits of A, B and C are in the ratio of 6 : 9 : 5, for how many months was C a part of the business? MCQ
- Two friends Roman and Shimul invest in a grocery shop. Shimul invests Tk. 25000/- while Roman invests Tk. 35000. Third friend Salim, joins them with the condition that all of them must get equal share of profit. To do so, he gives Tk. 400000 to Roman and Shimul to share between themselves. Find the ratio in which Roman and Shimul should share the money given by Salim? MCQ
- B invested three-fourths of what C invested. A invested 20% more than B. What is C's investment, if total investment is Tk. 3816 MCQ
- Armaan and Ghalib started a cafe with Tk. 40000 and Tk. 80000, respectively. Ghalib got married to someone in another town and left after 7 months. But Jishan immediately replaced him with an investment of Tk. 144000. At the end of the year, the business performed well and registered a profit of Tk. 50600.What is Ghalib’s share in this profit? MCQ
- A and B started a business jointly A's investment was thrice the investment of B and the period of his investment was two times the period of investment of B. If B received Tk. 4000 as profit, then their total profit is : MCQ
- A and B entered into a partnership investing Tk. 16,000 and Tk. 12,000 respectively. After 3 months, A withdrew Tk. 5000 while B invested Tk. 5000 more, After 3 more months, C joined the business with a capital of Tk. 21,000, The share of B exceeds that of C, out of a total profit of Tk. 26,400 after one year by: MCQ