Ap gp hp problem from nda paper .please give satisfy solution for this question
anuj pal , 8 Years ago
Grade 12th pass
Algebra> Ap gp hp problem from nda paper .please g...
1 Answers
jayant rathi
x,y,z are in AP so 3y=15,gives y=5,
now y is the arithmetic mean of a and b also so a+b=10
now likewise 1/p,1/q and 1/r are in ap so 3/q=5/3,q=9/5;
now 1/a+1/b=2/q, so (a+b)/ab=10/9;
so ab=9,now using simple logic if ab=9,and a+b=10, the a=1 and b=9 are the only possibility;
so the ap comes out to be 1,3,5,7,9 so xyz=105;
and hp comes out to be 1,9/7,9/5,3,9 so pqr=243/35
LIVE ONLINE CLASSES
Prepraring for the competition made easy just by live online class.
Full Live Access
Study Material
Live Doubts Solving
Daily Class Assignments
Other Related Questions on algebra
Can we divide two vectors? If this is possible then how?
Can we divide two vectors? If this is possible then how?
algebra
1 Answer Available
Last Activity: 1 Year ago
How do you write “the product of 18 and q” as an algebraic expression?
How do you write “the product of 18 and q” as an algebraic expression?
algebra
1 Answer Available
Last Activity: 1 Year ago
दहावीच्या आय सी एस इ विद्यार्थ्यांनी पुढे काय करायला पाहिजे
दहावीच्या आय सी एस इ विद्यार्थ्यांनी पुढे काय करायला पाहिजे
algebra
1 Answer Available
Last Activity: 3 Years ago