triz

the fifth term of an arithmetic progression is 19,and the fourteenth term is 55. Find its first term

An aeroplane flies from a town p on(lat.40N,38E)to another town Q on (Lat.40N,22W).It later flies to a third town T on(Lat.28N,22W). Calculate the average speed at which the aeroplane will fly from P to T via Q, If the journey takes 12 hours. Take R to be...

find the 7th term of the geometric progression if the first and 5th terms are 16 and 9 respectively.

five years ago, a mother was twice as old as her son. In 6 years time, the sum of their ages will be 82. Fiind their present age.

a triangle has sides f length xcm,(2x-1)cm and (2x+1)cm. If its perimeter is 40, state the size of the largest angle of the triangle giving reasons

18 x 60= 10800

1 pound= 3.96/2 which=1.98. 1.98 x 6=11.88. the answer is therefore 11.88

Alexander Fleming