Q19) Alex asked his grandfather about his age.
His grandfather replied,
“You may add my age to 52 then divide the sum by 3.
You then subtract 15 from the quotient.
Lastly, you multiply the difference by 5, the results will be 125.”
Please help Alex to unscramble this Mathematical puzzle in order to find his grandfather’s age.
Showing posts with label Working backards. Show all posts
Showing posts with label Working backards. Show all posts
Monday, June 22, 2009
Tuesday, June 16, 2009
June Holiday Math Quiz - Week 3 Day 2
Q12) On Monday, half of the total number of books were loaned out.
Another 87 books were loaned out the next day.
There were only 43 books left in the library.
How many books were there in the library at first?
Another 87 books were loaned out the next day.
There were only 43 books left in the library.
How many books were there in the library at first?
June Holiday Math Quiz - Week 3 Day 1
Q11) A number is added to 6.
The sum is then multiplied by 6.
6 is again subtracted from the product.
When the difference is divided by 6, the result is still 6.
What is the number?
The sum is then multiplied by 6.
6 is again subtracted from the product.
When the difference is divided by 6, the result is still 6.
What is the number?
Friday, June 12, 2009
June Holiday Math Quiz - Week 2 Day 5
Q10) There are 16 rows of seats in a school hall.
There are 75 seats in the last row.
If there is an increase of 3 seats, starting from the first row,
how many seats are there in the first row?
There are 75 seats in the last row.
If there is an increase of 3 seats, starting from the first row,
how many seats are there in the first row?
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