A train 800 meters long is running at a speed of 78 km/hr . If it crosses a tunnel in 1 minute, then the length of the tunnel ( in meters ) is :A360B500C540D130সঠিক উত্তর:B.500শেয়ার :Share on FacebookShare on WhatsAppShare on Telegram
১What will be the least number which when doubled with be exactly divisible by 12, 18, 21 and 30 ?63012602520196বিস্তারিত
২If 4 (A’s capital) = 6 (B’s capital), then out of a profit of TK. 4650, C will receive :90015502250465বিস্তারিত
৩How many times in a day, are the hands of a cock in straight line but opposite in direction ?22244820বিস্তারিত
৪Two numbers A and B are such that the sum of 5% of A and 4%of B is two-third of the sum of 6% of A and 8%of B. Find the ratio of A : B .1 : 13 : 44 : 32 : 3বিস্তারিত
৬3 pumps , 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 ?1011129বিস্তারিত
৮A student was asked to find the arithmetic mean of the numbers 3, 11, 7, 9, 15, 13, 8, 19, 17, 21, 14, and x. He found the mean to be 12. What should be the number in place of x ?717313বিস্তারিত
৯Find the smallest number by which 5808 should be multiplied so that the product becomes a perfect square .37112বিস্তারিত
১০The interest on a certain deposit at 4.5% p.a. is TK. 202.50 in one year. How much will the additional interest in one year be on the same deposit at 5% p.a. ?22.52520.2542.75বিস্তারিত
