ibps-rrb-os1 2015 · Question 78 of 194

(A) Their invention has been proved to be a boon to the society since many diseases caused by the microbes could be cured by these antibiotics. (B) The scientists therefore face a continuous challenge to keep inventing newer drugs to counter this problem. (C) A major hurdle in the use of antibiotics, however, is that the microbes develop resistance to the antibiotics thus rendering these ineffective. (D) Antibiotics are chemical substances produced by microbes which are capable of inhibiting the growth of other microbes.

1. ABACD
2. BCBAD
3. CDABC
4. DDACBCorrect
5. EABDC >> 463IBPS CWE-RRB Officer Scale-I Exam 2015 DIRECTIONS (Qs. 86-95) : In the following passage there are blanks, each of which has been numbered. These numbers are printed below the passage and against each, five words/ phrases are suggested, one of which fits the blank appropriately. Find out the appropriate word/phrase in each case. The barter system for getting goods and services (86) back many centuries. In most cultures the barter system was used before money was (87). People who had specific items or services would (88) these with others for the things they needed. Good negotiation was the (89) to making good trades. While the barter system (90) based on basic needs, today the barter system continues to thrive. The barter system transcends the monetary system. The barter system is making a (91) today . What makes the barter system even better today than ever before is that it can now be done globally . In the past bartering was simply done with those that were located nearby . Today the barter system can be used in a much more (92) way than ever before yet it carries with it the same basic motivation -the need for something that you don’t have and the excess of something that someone else wants. The barter system is enjoying (93) interest today . Bartering allows you to get the things you need without having to (94) additional money . Instead you can use the things you no longer need or want to get the things you do need. There are swap markets and online auctions that (95) you to sell or trade your items or to purchase items that you want. Negotiation takes place just like it did hundreds of years ago.