১২৬২১
If A and B together can complete a work in 18 days. A and C together in 12 days and B and C together in 9 days, then B alone can do the work in :
উত্তর
24 days
১২৬২২
If A and B together can complete a piece of work in 15 days and B alone in 20 days, in how many days can A alone complete the work?
উত্তর
60
১২৬২৩
In a 729 liters mixture of milk and water, the ratio of milk to water is 7 : 2. To get a new mixture containing milk and water in the ratio of 7 : 3, the amount of water to be added is :
উত্তর
81 Liters
১২৬২৪
Kamal started a business investing Tk. 9000. After five months, Sameer joined with a capital of Tk. 8000. If at the end of the year, they earn a profit of Tk. 6970, then what will be the share of Sameer in the profit?
উত্তর
TK. 2380
১২৬২৫
The angle of elevation of a ladder leaning against a wall is 60⁰ and the foot of the ladder is 4.6 m away from the wall. The length of the ladder is :
উত্তর
9.2 m
১২৬২৬
Father is aged three times more than his son Ronit. After 8 years, he would be two and a half times of Ronit’s age. After further 8 years, how many times would he be of Ronit’s age?
উত্তর
2 times
১২৬২৭
An accurate clock shows 8 o’clock in the morning. Through how many degrees will the hour hand rotate when the clock shows 2 o’clock in the afternoon?
উত্তর
180°
১২৬২৮
66 cubic centimeters of silver is drawn into a wire 1 mm in diameter. The length of the wire in meters will be
উত্তর
84 meters
১২৬২৯
A man purchased a cow for Tk. 3000 and sold it the same day for Tk. 3600, allowing the buyer a credit of 2 years. If the rate of interest be 10% per annum, then the man has a gain of :
উত্তর
0%
১২৬৩০
Find the greatest number that will divide 43, 91, and 183 so as to leave the same remainder in each case.
উত্তর
13