১১৯৬২
A mixture of 72 kg contains 17 parts A, 3 Parts of B, 4 parts of C. Find the quantity of B?
উত্তর
9 kg
১১৯৬৩
A car washer machine can wash 8 cars in 18 minutes. How many cars can be washed at the same rate in 3 hours?
উত্তর
80
১১৯৬৪
The total ages of father and son is 42 years and the difference of thier ages is 22 years. What is son's age now?
উত্তর
10 years
১১৯৬৫
What must be added to the expression (4a 2 + 9b 2 ) so that the same is a perfect square?
উত্তর
12ab
১১৯৬৭
The selling price of 15 items equals the cost of 20 items. What is the percentage of profit earned by the seller?
উত্তর
33.3%
১১৯৬৮
A student is ranked 13th from right and 8th left. How many students are there in total?
উত্তর
20