২৪০১৫
A water tank has two taps (Tap-1 and Tap-2). Tap -1 can fill a tank in 8 hours and Tap-2 can empty the tank in 16 hours. How long will they take to fill the tank if both taps are opened simultaneously but Tap-2 is closed after 8 hours?
উত্তর
12
২৪০১৬
The interest charged on a loan is p dollars per $1,000 for the first month and q dollars per $1,000 for each month after the first month. How much interest will be charged during the first three months on a loan of $ 10,000?
উত্তর
10p + 20q
২৪০২০
Triangle ABC has the following vertices: A (1,0) , B (5,0) and C (3,4). which of the following is true?
উত্তর
CA =CB