EN हिं

NCERT Solutions Ganita Prakash (Part 1) Chapter 1 .1 A Lakh Varieties! — Figure it Out

Book page 31 Updated on2026-09-05

Q1.
According to the 2011 Census, the population of the town of Chintamani was about 75,000. How much less than one lakh is 75,000?
Answer

75,000 is 25,000 less than one lakh.

One lakh = 1,00,000
1,00,000 − 75,000
= 25,000
Why it happens: Think in thousands. A lakh is 100 thousands, and 75,000 is 75 thousands. So the gap is 100 − 75 = 25 thousands, that is 25,000. Chintamani in 2011 was three-quarters of a lakh.
Q2.
The estimated population of Chintamani in the year 2024 is 1,06,000. How much more than one lakh is 1,06,000?
Answer

1,06,000 is 6,000 more than one lakh.

1,06,000 − 1,00,000
= 6,000
Why it happens: In the Indian system 1,06,000 reads as “one lakh six thousand”. The comma after the 1 already separates the lakh from the rest, so the part beyond a lakh is simply 06,000 = 6,000.
Q3.
By how much did the population of Chintamani increase from 2011 to 2024?
Answer

The population went up by 31,000.

Population in 2024 = 1,06,000
Population in 2011 = 75,000
Increase = 1,06,000 − 75,000
= 31,000 people
Why it happens: You can also add the two answers above: 75,000 climbed 25,000 to reach one lakh, and then a further 6,000 to reach 1,06,000. 25,000 + 6,000 = 31,000 — the same answer, reached without a single borrow.
Did you know? That is an increase of about 41% in 13 years — roughly 2,400 extra people every year.
Was this helpful? Report an error