Questions - Large Numbers Around Us

Page No. 2 - What if a person ate 3 varieties of rice every day? Will they be able to taste all the lakh varieties in a 100 year lifetime? Find out.

A person eats 3 different varieties of rice every day.
In one year, they eat 3 × 365 = 1,095 varieties.
In 100 years, they eat 1,095 × 100 = 1,09,500 varieties.

Since there are only 1,00,000 varieties, they will finish all of them before 100 years end.
To finish 1,00,000 varieties at 3 per day, they need about 33,333 days.
33,333 days is about 91 years and 4 months.

So they can taste all the rice varieties in about 91 years, and in 100 years they will have tasted all and about 9,500 extra varieties.