Question
If all the prime digits of the number 8672865978 are
written first (in increasing order) followed by even digits(in increasing order) and then odd digits (in increasing order), then which is the sixth digit from the right end after rearrangement?Solution
8 6 7 2 8 6 5 9 7 8 2 5 7 7 6 6 8 8 8 9
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69 73 64 80 ? 91
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The following table shows the marks obtained by five students in three subjects:
The sum of the ages of a mother and her daughter is 50 years. Four years ago, the mother was five times as old as her daughter. What are their current a...
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