यदि $$ {1\over3} ({12x\over5}-{1\over2})+{6\over5}={7\over6}$$  है तो x का मान होगा ?

कौन व्यक्ति हाल ही में, इंटरनेशनल रोड फेडरेशन (IRF) की भारतीय शाखा के अध्यक्ष बने है?

निम्नलिखित प्रश्न में यदि एक दर्पण को MN रेखा पर रखा जाये, तो दी गई उत्तर आकृतियों में से कौन—सी आकृति प्रश्न आकृति की सही प्रतिबिम्ब होगी?

थॉमस कप निम्नलिखित में से किस खेल से सम्बन्धित है?

किसी निश्चित धनराशि पर, अर्द्धवार्षिक रूप से देय एक वर्ष का चक्रवृद्धि ब्याज तथा 1 वर्ष का साधारण ब्याज का अंतर 56 रू है । यदि दोनों ही स्थिति में दर 16 % हो , तो वह राशि कितनी है ? 

Read the passage carefully and choose the best answer to each question out of the four alternatives.
The problem of water pollution by pesticides can be understood only in context, as part of the world to which it belongs- the pollution of the total environment of making. The pollution entering our waterways comes from many sources, radioactive wastes from reactors, laboratories, and hospitals; fallout from nuclear explosions; domestic wastes from cities and towns; chemical wastes from factories. To these is added a new kind of fallout the chemical sprays applied to crop lands and gardens, forests and fields. Many of the chemical agents in this alarming melange initiate and augment the harmful effects of radiation, and within the group of chemicals themselves there are sinister and little- understood interactions, transformations, and summations of effect.
Even since the chemists began to manufacture substances that nature never invented, the problems of water purification have become complex and the danger to user of water has increased. As we have seen, the production of these synthetic chemicals in large volume begin in the 1940’s. It has now reached such proportion that an appalling deluge of chemical pollution is daily poured into the nation’s waterways. When inextricably mixed with domestic and other wastes discharged into the same water, these chemicals sometimes defy detection by the methods in ordinary use by purification plants. Most of them are so complex that they cannot be identified. In rivers, a really incredible variety of pollutants combine to produce deposits that sanitary engineers can only despairingly refer to as “gunk”.

All the following words mean ‘chemical’ except

15 व्यक्ति एक काम को 60 दिनों में पूरा कर सकते हैं। यदि व्यक्तियों की संख्या 5 और बढ़ा दी जाए , तो काम कितने दिन पहले पूरा हो जायेगा