JEE, NEET, Foundation & CBSE

Raman can do a work in 5 days, Jatin can do the same work in 7 days and Sachin can do the same work in 9 days. If they do the same work together and they are paid Rs 2860, then what is the share (in Rs) of Raman?
  1. 1260
  2. 700
  3. 900
  4. 870
If the price of pen decreases by 20%, then a man can buy 10 more pens for Rs 100. What is the new price (in Rs) of each pen?
  1. 1
  2. 2
  3. 4
  4. 3
R
R
If the diameter of a sphere is 14 cm, then what is the surface area (in cm2) of the sphere?
  1. 616
  2. 308
  3. 462
  4. 636
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