PQRS is a rhombus with angle QPS=50° find angle RQS.
Question
Maths
Feb. 20, 2019, 7:19 p.m.
Answer
8 men and 12 boys can together finish a piece of work in five days, while 6 men and 8 boys can finish it in 7 days. Find the time taken by 1 man alone and that by 1 boy alone to finish the work.
If the coefficient of second , third and fourth terms in the expansion of (1+x)^ 2n are in A.P.show that 2n²-9n+7=0.