Ashok left X and reached Y in 4 hours. His average speed for the journey was 90 kmph. Find the distance between X and Y (in km). (A ) 180 (B) 360 (C) 720 (D) 900
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December 2022
How can you (i)increase and (ii)decrease pH of a solution having pH=6
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December 2022
calculate the hydrogen ion and hydroxyl ion concentration of 0.01 M solution of NaOH at 298K
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December 2022
Read the following passage carefully :Ask people whether credit cards are a necessity or a luxury and most would probably term them a necessity these days. Credit cards are considered a boon for the ready convenience they confer on the user - you don't have to worry about carrying enough...
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Asked:
December 2022
if Sr denotes the sum of first r terms of an A.P.,then find S3r-Sr-1/S2r-S2r-1