Danny attended a test containing 40 questions. If he had corrected 18 questions out of the first 22 and two-third of the remaining questions, what percent of all the questions did he answer correctly?

Bonds Telecom sold 140 SIM cards for Tk. 250 each, 120 SIM cards for Tk. 215 each and 50 SIM cards for TK. 200...

An athlete running at 24 km /hr crosses a square field diagonally in 3 minutes. what is the area of the field?

If w= 4x, 12y=8x , 6y=2z and 9v=6z then what is the value of 'w' in terms of 'V'?

In a school 80% students passed in Bangla and 65% passed in Science . If 50% of the students have passed both...

In a class , the ratio of the number of boys to girls is 5 : 3 . What percent of the students of the class are...

A jar contains 10 red marbles and 30 green marbles . How many red marbles must be added to the jar so that 60%...