how many ways thay you can add 3 different positive whole numbers to get a total of 2 +2+8=12 is not , since 2,2and 8 are not all different . if you multiply these 3 number , you get the number called product. of all the ways to do this , what is the largest possible product ?

a  newspaper open on the table had page 42 opposite page 55 because someone had removed some pages the centre . What is the number of the last page of the centre ?

a 3x2 flag is divided in to 6 squares, as shown.Each square is to be coloured green or blue, so that every square shares at least one edge with another square of the same colour . In how many different ways can this be done?

how many number ranging from1 to 100 are not multiplies of 3 and not divisible by 7

mix 25 tons of iron ore containing 72% iron with 25 tons of iron containing 60% irons .How many percent of iron ore does that mixture of iron ore contain?

1,5 chicken lay 1,5 egg in 1,5 days. Ask , how many eggs does 15 chickens lay in 15 days.

a father with 4 sons has square field. 1/4 of the field is for himself . he promises to give the rest to the son if they can divide it into 4 shape with the same area and shape. how do the sons need to do?

Given the square ABCD with side 20 cm . M is midpoint of the BC , N is midpoint on CD.The segment AM and the segment BN intersect each other at O . find the area of the quadrilateral ANOD

given a rectangel ABC ,  the area is180 cm². on AB get midpoint P, on BC get midpoint Q. connect AQ,CP cut in O . Find the area of AOC?