কাফি ও খলিল একটি কাজ যথাক্রমে ১০ দিনে ও ১৫ দিনে করতে পা??ে। তারা একত্রে কাজটি কত দিনে করতে পারবে?
A. ৪
B. ৫
C. ৬
D. ৭
শিক্ষক নিবন্ধন ও প্রত্যয়ন পরীক্ষামানসিক দক্ষতা(IQ)গাণিতিক সমস্যাIQ-4 (Topic Practice)শিক্ষক নিবন্ধন ও প্রত্যয়ন পরীক্ষা - ⚡ অনলাইন প্রশ্নব্যাংক দেখুন 💥
সঠিক উত্তরঃ
C.
৬
Explanation:
Related Questions (Any University/Year)
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- Jeff takes 20 minutes to jog around the race course one sme, and 25 minutes to jog around a second time. What is his average speed in miles per hour for the whole jog if the course it 3 miles long?
- If the average of five distinct positive integers is 10, what is the difference between the largest and the least possible values of the greatest of the five integers?
- \( 0.001 \div 0.1 \times 0.1 = ? \)
- If (a+b+c)/4= (a+b)/3, then what is the value of c?
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- A dishonest milkman professes to sell his milk at cost price but he mixes it with water and there by gains 25% . The percentage of water in the mixture is:
- A river boat leaves Silver Town and travels upstream to Gold Town at an average speed of 6 kilometers per hour. It returns by the same route at an average speed of 9 kilometers per hour. What is the average speed for the round-trip in kilometers per hour?
- There were n books in a store. After 1/6th of the books were sold and 5 more books were procured, the total number of books in the shop stood at 65. What was the original number of books in the shop?
- How many flowers are there if all of them are roses except two, all of them arc tulips except two, and all of them are daisies except two?
- A car covers four successive 7 km distance at speeds of 10 km/hr, 20 km/hr, 30 km/hr and 60 km/hr , respectively . Its average speed over this distance is :
- a, b,c are positive numbers such that (3a=4b=5c). If (a+b =kc), what is the value of K?
- The sale of TV increased by 30% when the price was reduced by 10%. What will be the percentage change in revenue?
- ০.০০১ x ১০০০ = =?
- A fruit vendor purchased 35 dozens of apple at TK. 10 per dozen. Out of those, two dozens got rotten and he sold 28 dozens at Tk. 12 per dozen. Remaining apples were sold by him for TA. 15 per dozen. Find the amount of total profit made by the vendor in this business.
- ৫টি বিড়াল ৫টি ইঁদুর ধরতে সময় লাগে পাঁচ মিনিট। ৩০টি বিড়াল ৩০টি ইঁদুর ধরতে কত সময় লাগবে ?
- A machine is producing 800 units per minute. If its productivity falls by a half percent, how many units will it produce now?
- If x and y are integers and -6< x ≤ 7 and -3≤ y ≤ 9, then which of the following CANNOT be a value of xy?
- A PhD research group has 12 male and 18 female participants. Males are what fraction of the class?
- A trader normally makes a profit of 40 % on items he sells . If he reduces the price by 10% his sales increased by 40% . Let x be the total profit when he doesn't reduce the price and y the total profit when he reduces the price what is the ratio of y to x ?