Numerical Brain practice

If you have confidence pls let us go and have a try:

 

1)The average of 4 consecutive odd numbers is 50 ,what is the greatest number?

 

    A  60                         B  53                 C  73                    D  54                 E   62

 

2) there are 3 nurses and they work altogether only once in a week. no nurse is called to work for 3 consecutive days.
nurse 1 is off on tueseday, thursday and Sunday.
nurse 2 is off on Saturday.
nurse 3 is off on Thursday, Sunday.
no two nurses are off more than once a week.
find the day on which all the 3 nurses were on work.

 

3)2 kilo apple and 5 kilo orange are currently the same price.If the price of apple rises by 5% and the price of orange will gose up by 10%.how much will it cost to buy 4 kilo apple and 2 kilo orange?

 

4) what is the missing number in this series :12,13,16,21,28, 37, 48, ?

 

5)If a person A can finish the work in 40 minutes and person B can finish the same work in 30 minutes ,How long will it take if they both work the same work together?

 

6)Nancy get a salary increase of 5% and plus an extra 10 per week,her present salary is $300 per week,what will be her new salary ?

A 315                          B320                        C310                    D:330                E:325