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expalin surds and it's form in detail.

A,B,C can do a piece of work in 2 days. If A starts work and after 3 days B joins, the work was completed in 3 more days . B takes 2 more days with respect to C to complete the work. In how many days B alone can complete the twice work with double efficiency?

Q)1light yr=.....m

The difference between compound interest and simple interest on a sum for 2 year at 20% per annum is Rs 200. If the interest is compounded halfyearly, then what is the difference (in Rs) between compound and simple interest for 1st year?

How to think in series while take a mock test

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