If 15 is the 6th number in a series of 6 consecutive odd numbers,what is the 4th number in the series?

Jamal needs 8 hours to do a job. Kamal takes 10 hours to do the same job. How long should it take Kamal & Jama...

How many years does it take for interest Tk. 1000 to become equal to the interest to the interest on Tk. 20 in...

Asif is designing a doll house. The floor will be in the shape of a rectangle whose length is 2 feet more than...

A mixture of garbage is composed of 3 elements : by weight 1/3 of the weight is broken bottles. 3/5 of the gar...

A group of kittens went on sale and 2/3 of them were sold for Tk. 2.30 each. If none of the 36 remaining kitte...

An examiner checks 4 scripts in 5/3 hours. How many scripts can he check in 50 minutes?