২৫৯৭২
Threee boys have marbles in the ratio of 19:5:3. If the boy with the least number has 9 marbles, how many marbles does the boy with the highest number have?
উত্তর
57
২৫৯৭৭
A circular wheel 28 inches in diameter rotates the same number of inches per second as a circular wheel 35 inches in diameter. If the smaller wheel makes x revolutions per second, how many revolutions per minutes does the larger wheel make in terms of x?
উত্তর
48x
২৫৯৭৮
what is the miximum number number of 3×3 squares that can be formed from the squares in the 6×6 checker board to the right?
উত্তর
16
২৫৯৭৯
A, B C center into partnership with investments in the ratio of 5:7:8. If at the end of the year A's share of profit is Tk. 42360, how much is the total profilt?
উত্তর
Tk. 169,440