Questions

Private sector lender HDFC Bank has made online fund transfer through RTGS (Real Time Gross Settlement) and NEFT (National Electronic Funds Transfer) free with effect from November 1, with an aim to promote digital economy.

According to the revised charges, customers of savings and salary accounts of HDFC Bank will not have to pay any charge for transferring funds online using its RTGS and NEFT facilities.

Our solution:

Toss the coin twice.
Let TH, HT and TT correspond to the three choices.
And if you get HH, just repeat (so it takes 8/3 tosses on average).


BIASED COIN

If the coin was biased, TH and HT would occur with equal probability.
So you could assign THHT, HTTH and THTH to the three choices, with other 4-toss outcomes rejected.
Or you could assign HTT, THT and TTH to the three choices, with other 3-toss outcomes rejected.

TIME is what we can measure in Years, Months, Days, Hours, Minutes and Seconds but we cannot see.

The Yarlung Zangbo river in India is known as Brahmaputra. The river Brahmaputra in China is called Yarlung Tsangpo or Yarlung Zangbo river. In Assam and Arunachal Pradesh it is called Lohit or luit meaning blood.

The Brahmaputra is one of the major rivers of Asia, a trans-boundary river which flows through China, India and Bangladesh.