Which of the following is the longest time?

A cake is put in the oven at 7.20 am. If the cake takes three quarters of an hour to bake, at what time should...

Mr. Karim's age is 4 year less than 3 times of Mr. Momen's age. If Mr. Momen is h years old, Which of the foll...

At the same time that a 60-feet tall building casts a shadow that 21.5 feet long, a nearby tree casts a shadow...

A collection of books went on sale and 2/3 of them were sold for TK. 2.30 each. If none of the 36 remaining bo...

In company X, the average salary of 10 of the employees is TK. 30,000 the average salary of 30 other employees...

If a women is paid Tk. m per hour for every hour she works up to 8 hours and is paid double for every hour she...