Others Maths Puzzle Numerical Ability

can someone suggest me.. how can I get the question of Last Week which had asked in Today Puzzle?

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http://www.m4maths.com/maths-puzzles.php?page=1
10 years agoHelpfull: Yes(2) No(0)

Thank You @Rakesh ...
10 years agoHelpfull: Yes(0) No(0)

Others Other Question

The average age of 35 students in a class is 16 years. Out of these students the average age of 21 students is 14 years. The average age of remaining students is- How many 5 digits numbers are divisible by 11 using 0,1,2,3,4 without repetition?