Sarah is twice as old as her youngest brother. If the difference between their ages is 15 years. How old is her youngest brother?
Subject: Mathematical Problems Multiple Choice Quiz ( MCQ ) and Answer
It takes 30 days to fill a laboratory dish with bacteria. If the size of bacteria colony doubles each day, how long did it take for the bacteria to fill one half of the dish?
A group of workers can do a piece of work in 24 days. However as 7 of them were absent it took 30 days to complete the work. How many people actually worked on the job to complete it?
A contractor estimates that he can paint a house in 5 days by using 6 men. If he actually uses only 5 men for the job how many days will it take to do this job?
Azhar works thrice as much as Baten and is therefore able to finish a piece of work in 60 days less than Baten. Find the time in which they can do it together.
Running at the same constant rate, 6 identical machines can produce a total of 270 bottles per minute. At this rate, how many bottles could 10 such machines produce in 4 minutes?
Farid can complete a job in 12 hours, and Jibon can complete the same job in 8 hours. Farid starts the job at 9 a.m., and stops working at 3 p.m. If Jibon starts working at 4 p.m. to complete the remaining job, at what time is the job finished?
Jesmin spent one-third of her money on books and half of the remaning money on clothing. She then spent three-fourths of what she had left on food. She had 500 left over. How much money did she start with?
If an object travels at five feet per second, how many feet does it travel in onw hour?
The cost to ride on a ferry is Tk. 500 per vehicle and drive with an additional cost of Tk. 50 per passenger. If the charge to get on the ferry is Tk. 650, how many people were in the vehicle?
On a Map, 1 inch represents 20 miles. The distance between 2 towns is 6.5 inches. How many miles are actually between the two towns?
A group of workers can do a piece of work in 24 days. However as 7 of them were absent it took 30 days to complete the work. How many people actually worked on the job to complete it?
At present, father’s age is 4 times more than that of his son. 6 years ago father’s age was 10 times more than that of his son. What is their present age?
In a race of 200m, A can beats B by 31m and C by 18m. In a race of 350m, C will beat B by ___.
What is the next number- 5, 25, 325, 4325, ____?
What is the missing number in Triangle Four?
If (3-2x) ≤ 7, then
What is the next number of this series: 16, 33, 68, 139, 282, ___
What is the next number of this series: 16, 33, 67, 135, 271, ___