The statement mentions that chances of heart ailments are greatly reduced by a regular half-hour exercise. So, a follows. However, it talks of only reducing the probability which does not mean that persons involved in sedentary jobs shall definitely suffer from heart ailments. So, b does not follow.

Hence, concusion a only follows the given statement.

KPMG in India announced the election of Arun M. Kumar as Chairman and Chief Executive Officer of the firm for a five-year term, on February 5, 2017.
Arun Kumar succeeds Richard Rekhy, who led the firm as CEO for over four years. Arun Kumar was elected by the KPMG India Board and ratified by the India Partners. The firm executed a well-defined governance process for the selection of the CEO that aligns with the objective of building on its success as well as attracting the best talent available for this role. Arun Kumar brings a wealth of international leadership experience to KPMG India, including his tenure in public service in the United States for the last three years as Assistant Secretary of Commerce for Global Markets and Director General of US and Foreign Commercial Service in the Obama Administration.

The technology giant Apple has been named as the most innovative company of 2016, as per Boston Consulting Group (BCG) 2016 analysis. In the list of world’s 50 most innovative companies, Google has been ranked second, followed by Tesla Motors, Microsoft, Amazon, Netflix, Samsung, Toyota, Facebook and IBM. 

Dr. A Keshav Krishna, a scientist at the National Geophysical Research Institute (NGRI), has been selected for 2016 National Geoscience Award by the Ministry of Mines in the field of Geo-environmental studies in applied geosciences.

The C.M of Assam, Sarbananda Sonowal has recently launched the ‘Chief Minister’s Award’ to promote digital transaction in Assam.

The Chief Minister’s Award would be given to the best performing district of the state that adopts digital payment methods and also educate larger section of the society about the cashless transaction.

The winning district’s Deputy Commissioner would be presented a prize of Rs 50,000 at the end of financial year 2016-2017 after March 31, 2017.

Dr. Gullapalli N. Rao, the founder and chair of the LV Prasad Eye Institute (Hyderabad), has been selected to the 2017 Ophthalmology Hall of Fame instituted by the American Society of Cataract and Refractive Surgery (ASCRS). He will be honoured at the induction ceremony in Los Angeles on May 6, 2017 at the annual meeting of the ASCRS.

Currently, Rao is the President of the prestigious Academia Ophthalmologica International (AOI), a group of 80 eminent academicians in ophthalmology in the world and is a past Chair of the International Agency for the Prevention of Blindness (IAPB).

Keeping in mind the safety and convenience of passengers, both 'a' and 'b' follow. 'c' clearly suggests a remedy to the problem and hence it also follows.

Arun has completed 13rd of the work in 8 days

Then he can complete the total work in

13 ---- 8

 1 ---- ?

= 24 days

But given Akhil is only 60% as efficient as Arun

Akhil =124×60100=140

Akhil can complete the total work in 40 days

Now, remaining 2/3rd of work can be completed in

 1  ------   40

23 ------   ?  

= 26.66 days.