" 1.(i) "5" और-32के दीच "8" A.M.'s रक्षिए । "

If A_(1) and A_(2) are two A.M.'s between a and b, prove that (i) (2A_(1)-A_(2))(2A_(2)-A_(1))=ab (ii) A_(1)+A_(2)=a+b

What is the ratio of mean proportional between 1.8 and 3.2 and the third proportional of 5 and 3? 1.8 तथा 3.2 के बीच माध्य समानुपाती तथा 5 और 3 के तीसरे आनुपातिक का अनुपात क्या है ?

If A_1 and A_2 are two A.M.’s between a and b, prove that : A_1+A_2 =a+b .

How many numbers between 300 and 700 are divisible by 5, 6 and 8? 300 और 700 के बीच कितनी संख्या 5, 6 और 8 से विभाज्य है |

If A_(1),A_(2) be two A.M.'s and G_(1),G_(2) be two G.M.,s between a and b, then (A_(1)+A_(2))/(G_(1)G_(2)) is equal to

The co-eff. Of variation of a data is 58%, S.D. of the data is 2.32 then the A.M. of the data is

Buses arrive at a specified stop at 15-minute intervals starting at 8.00 A.M. That is, they arrive at 8.00 A.M., 8.15 A 8.30 A.M., and on. If a passenger arrives at the stop at a time that is uniformly distributed between 8 A.M. and 8:30 AM, find the probability that she waits than 5 minutes for a bus.