1 votes 1 votes $\frac{1}{10^{9}}[30*10^{-3}]+(1-\frac{1}{10^{9}})[300*10^{-9}]$ Answer should be in nano seconds Quantitative Aptitude test-series + – Dulqar asked Jan 12, 2017 retagged May 1, 2017 by Arjun Dulqar 265 views answer comment Share Follow See all 3 Comments See all 3 3 Comments reply mohit chawla commented Jan 12, 2017 reply Follow Share is answer 300.029997nsec?? else u can go with 300.03nsec. 0 votes 0 votes Dulqar commented Jan 12, 2017 reply Follow Share Yeah it is 300.03 .But can u pls provide a step wise solution . Im not getting how to simplify it :( 0 votes 0 votes mohit chawla commented Jan 12, 2017 reply Follow Share @dulqar, 1/109 = 1 nsec = 1*10-9 sec. so first term will become 30* 10-3 * 10-9 (because of 1/109)= .03nsec in second term 300* 10-9 is given so u can take it as 300nsec so it will become 300nsec*(1 - (1/109)) == 300nsec*(1 - 10*9) so the -ve term is quite small so we can neglect this term so addtion of 1st and 2ns term is 300nsec + .03nsec 1 votes 1 votes Please log in or register to add a comment.