Math Help Line

Rupali Bank Limited Post: Senior Officer

4-Feb-2020

Q:

The sum of three times the smaller and four times the larger is 71 and twice the larger of two number is three more than five times the smaller. What are the number?


Rupali Bank Limited Post: Senior Officer-03-01-2020

Answer

X = 14 , Y = 5

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Q:

In a boy’s school, if 5 students sit in every bench, 4 benches are empty. But if 3 students sit in every bench, 20 students are left standing, what is the number of benched in the class?


Rupali Bank Limited Post: Senior Officer-03-01-2020

Answer

20

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Q:

Sum of ages of mother and daughter is 60 years. 5 years ago, the ratio of their age was 4:1. What will be the ratio their age after 10 years?


Rupali Bank Limited Post: Senior Officer-03-01-2020

Answer

11:5

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Q:

If a - 1/a = 3, proved it, a4 + 1/a4 = 119.


Rupali Bank Limited Post: Senior Officer-03-01-2020

Answer

119 R.H.S

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Q:

A micro-bus was hired at Tk 5500 to travel intercity. The fare is shared equally among the passengers on the day of travel, but due to absence of 5 passengers, the average fare of per person was doubled. How many people avail the service?


Rupali Bank Limited Post: Senior Officer-03-01-2020

Answer

5 passengers

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Q:

A circular garden is surrounded by a road. If the outer circumference of the road is greater than the inner circumference by 88 meters. What is the width of the road?


Rupali Bank Limited Post: Senior Officer-03-01-2020

Answer

14 m

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Q:

A basin can be filled tap A in 5 hours and by tap B in 8 hours, each tap working on its own. When the basin is full and a drainage hole is open, the water is drained in 20 hours. If initially basin was empty and someone started the taps together but the drainage hole open, how long does it take for the basin to be filled?


Rupali Bank Limited Post: Senior Officer-03-01-2020

Answer

3 hour 38 minitue or 3/7/11 hour

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