What will be the least number which when doubled with be exactly divisible by 12, 18, 21 and 30 ?A630B1260C2520D196সঠিক উত্তর:A.630শেয়ার :Share on FacebookShare on WhatsAppShare on Telegram
১3 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
৩A 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
৪Find the smallest number by which 5808 should be multiplied so that the product becomes a perfect square .37112বিস্তারিত
৫The 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
৭If 0.4 of a number is equal to 0.06 of another number, the ratio of the numbers is :3:43:2020:32:3বিস্তারিত
৮The breadth of a rectangular field is 60% of its length . If the perimeter of the field is 800 m, what is the area of the field ?37500 sq.m40000 sq.m48000 sq.m18750 sq.mবিস্তারিত
৯Peter purchased a machine for TK. 80,000 and spent TK. 5,000 on repair and TK. 1,000 on transport and sold it with 25% profit , At what price did he sell the machine ?TK.1,06,250TK.1,07,500TK.1,17,5001,05,100বিস্তারিত
১০A takes twice as much time as B or thrice as much time as C to finish a piece of work . Working together , they can finish the work in 2 days . B can do the work alone in :6 days8 days12 days4 daysবিস্তারিত
