7th Grade Challenging Math
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7-36) Prove the
following:
m - n n - m
---------- = ----------
x - y y - x
7-37) The diameters of
the 3 circles on the target are 2 cm, 4 cm and 8 cm. What percent of the
target is purple?
7-38) A store has a
sale on products A and B. Both products are on sale by 25% off. At the sale
price, products A costs 15% more than products B. How much more does product A
cost than product B before the sale in percentage?
7-39) Two circles overlap.
The area of the overlapped region is 1/2 of the small circle's area and is 1/3
of the large circle's area. What is the ratio of the area of the small circle to
the large circle?
7-40) Two squares overlap. The area
of the overlapped region is 1/4 of the small square's area and is 2/9 of the
large square's area. What is the ratio of the area of the small square to the
large square?
More challenging math problems for seventh grade:
1-5 6-10 11-15 16-20 21-25 26-30 31-35
36-40 41-45 46-50
51-60
__61-70__
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71-80__
81-90 |