৩১৫৫১
A tap fill a tank in 6 hours. After half the tank is filled, three more similar taps are opened. What is the total time taken to fill the tank completely?
উত্তর
3 hours
৩১৫৫৩
Q is as much younger than R as he is older than T. If the sum of the ages of R and T is 50 years, what is definitely the difference between R and Q's age?
উত্তর
5
৩১৫৫৪
A certain suit's price was reduced by 25% in the first week and 20% in next week. In the third week, the shop owner decided to offer additional 10% discount on the suit. What percent of the regular price was the final price of the suit after the two reductions?
উত্তর
54%
৩১৫৫৫
An automobile financier claims to be lending money at simple interest, but he includes the interest every six months for calculating the principal. If he is charging an interest of 10%, the effective rate of interest becomes---
উত্তর
10%
৩১৫৫৬
A discount series of 10% , 15% and 20% is equal to a single discount of:
উত্তর
38.8%
৩১৫৫৭
The price of commodity X increases by 40 paisa every year, while the price of commodity Y increases by 15 paisa every year. If in 2001, the price of commodity X was TK4.20 and that of Y was TK 6.30, in which year commodity X will cost 40 paisa more than commodity Y?
উত্তর
2011
৩১৫৫৮
The price of each mango is 65 taka and the price of each guava is 45 taka. Aslam buys total to mangoes and guavas at an average price of 56 taka. How many mangoes must Aslam put back and replace with guavas so that the average price of the pieces of fruit that he keeps is 52 taka?
উত্তর
1
৩১৫৫৯
There are two numbers , 1 st number is 12 more than the 2nd number. The average of the two numbers is 19. If 2 is added in both numbers , find the ratio of the numbers.
উত্তর
9: 5
৩১৫৬০
Of the total no. of oranges that arrive at a juice company, 20% by weight is rejected before processing. Of the oranges that are processed, 15% by weight is rejected before being juiced. Of the oranges that are juiced, 25% are wasted as a result of juice making. Of the oranges, those arrive at the company, what percent by weight is juiced?
উত্তর
51