Subject
Bank Exam
Topic
Bangladesh Bank AD 2014
A man can do a piece of work in 5 days. But with the help of his son, he can do it in 3 days. In what time can the son do it alone?
A man can do a piece of work in 5 days. But with the help of his son, he can do it in 3 days. In what time can the son do it alone?
ক)
6.5 daysখ)
7 daysগ)
7.5 daysঘ)
8 daysExplanation
A man can do a piece of work in 1 days=1/5 part Both can do a piece of work in 1 days=1/3part son do it alone=(1/3-1/5) part =2/15 part 2/15 part done it in 1 days 1 part done in= 15/2 days=7.5 daysRelated questions
The greatest number that exactly divides 105, 1001 and 2436 is:The value of 1001 ÷ 11 of 13 isTo fill a tank, 25 buckets of water is required. How many buckets of water will be required to fill the same tank if the capacity of the bucket is reduced to two-fifth of its present?The average of the first nine prime numbers is:If the sum of two numbers is 33 and their difference is 15, the smaller number is:Tanya’s grandfather was 8 times older to her 16 years ago. He would be 3 times of her age 8 years from ago, what was the ratio of Tanya’s age to that of her grandfather?If ax=b, by=c, and cz=a, then the value of xyz is:01 is what percent of 1?