ratio of water and syrup=3:5 total quantity =8 new ratio should be 1:1 for equal quantity ratio =4:4 part of water replaced will be same as the qu...

27h answer is 10% ?

find the solution in discussion of 22nd question

24th previously scale was 100( assumed value) now it becomes 125 let price of 1 unit =1rs he is giving 125 unit and getting the price for 100 unit { c...

Send another image rs. Are not visible

Let label price be 100 Trader gets 19% discount so c.p for him =81 Apply m.p/c.p= (100+profit)/(100-discount) Profit= 20% discount=10% M.p/81= 120/9...

there is a rule in investment market they call it 72 rule you divide the rate into 72 and you get the years in which sum will get double here reverse ...

Place a hemishphere such that ends of it's diameter coincide with opposite vertices of any face of cube Diameter = diagonal of cube =a√3 Here a=1 So...

a+b+c=7 .................(1) ab+bc+ca= -6 .................(2) abc= -5 (a+b)(b+c)(c+a)= (ab+ac+b^2 +bc)(c+a) putting values from 1 and 2 (b² -6)(7-b...

answer is (25√3+36)/4 can you please explain 2nd equation?

for instance take a equilateral triangle r=a/2√3 and R=a/√3 R/r=2.................(1) now take a square r=a/2 and R=a√2/2 R/r=√2=1.414 ..................