২৬৬২১
A will will 8m long, and 22.5 cm thick is made of bricks, each measuring 25 cm X 11.5 cm X 6cm. The numbe of bricks will be required to surround the plot?
উত্তর
24
২৬৬২২
A and B together can do a piece of work in 40 days. A having worked for 20 days, B finishes the remaining work alone in 60 days shall B finish the whole work alone?
উত্তর
80 days
২৬৬২৫
A, B and C can complete a piece of work in 24, 6 and 12 days respectively. Working together , They will complete the same work in:
উত্তর
337day
২৬৬২৭
If U is placed in compartment 5, which of the following products must be placed in compartment 6?
উত্তর
Y
২৬৬২৮
The average age of 12 children is 15 years. If another child comes the averages age comes to 13. What is the age new child?
উত্তর
13.85 years
২৬৬২৯
A jar contains white, red and green marbles in the ratios 2: 3: 5 six more green marbles are added to the jars and then the ratio becomes 2: 3: 7 Hoe may white marbles are there in the jar?
উত্তর
6
২৬৬৩০
A pump can fill with water in 2 hours. Because of a leak, it took 213 hours to fill the bank. The leak can drain all water of the tank in:
উত্তর
14 hrs.