Q: How many zeros are there in one lakh?

As we know \$1 \quad lakh = 1000000\$\$\therefore C\$ will be the correct answer.

Q: How many thousands make a lakh?

\$1\$ lakh means \$1,00,000\$ which is equal to one hundred thousandTherefore \$1,00,000 = (100 \times 1000)\$Hence one hundred thousands make a lakh.

Question 1

If $6$ note books cost Rs. $45,$ how much would $8$ note books cost?

Accepted Answer

Given cost of 6 notebooks =Rs 45.Then cost of one notebook =Rs $\dfrac{45}{6}$So cost of 8 notebooks =Rs $\dfrac{45}{6}\times 8=60$ Rs

Question 2

Write in numerals: Ten lakh ninety thousand nine hundred nine.

Accepted Answer

Ten lakh ninety thousand nine hundred nineIn numerals it can be written as,$10,90,909$

Question 3

How many zeros are there in one lakh?

Accepted Answer

As we know $1 \quad lakh = 1000000$$\therefore C$ will be the correct answer.

Question 4

Name five large cities in India. Find their population. Also, find the distance in kilometres between each pair of these cities.

Accepted Answer

BangaloreMumbaiNew DelhiHyderabadKolkataAbout distance:-the distance between Bangalore to Hyderabad is $575$ km.the distance between Mumbai to Delhi is $1136$ km.the distance between Kolkata to Hyderabad is $1192$ km.About population:-Current Population of Bangalore is $11,556,907$,the population of Hyderabad is $8.7$ million.Current Population of Kolkata is $5$ million,Delhi population is $25$ million,and population of Mumbai is $21$ million.

Question 5

How many thousands make a lakh?

Accepted Answer

$1$ lakh means $1,00,000$ which is equal to one hundred thousandTherefore $1,00,000 = (100 \times 1000)$Hence one hundred thousands make a lakh.

Question 6

If a number reads &#34;Eleven lakh seventy thousand six hundred seven&#34;. Find the missing digit.$11,70,\_07$

Accepted Answer

Let us convert the given number in words into numerals as follows:Eleven lakh$=11,00,000$Seventy thousand$=70,000$Six hunderd$=600$Seven$=7$Now, add the numerals as shown below:$1100000+70000+600+7=1170607$Therefore, the required number is $11,70,607$.Hence, the missing digit in $11,70,\_07$ is $6$.

Question 7

The number reads &#34;Forty five lakh sixty one thousand two hundred thirty four&#34;

Accepted Answer

Let us convert the given number in words into numerals as follows:Forty five lakh$=45,00,000$Sixty one thousand$=61,000$Two hunderd$=200$Thirty$=30$Four$=4$Now, add the numerals as shown below:$4500000+61000+200+30+4=4561234$Therefore, the required number is $45,61,234$.

Question 8

Place commas correctly and write the numerals.Twenty three lakh thirty thousand ten.

Accepted Answer

$23,30,010$.

Question 9

How many lakhs make a billion?

Accepted Answer

1 billion =1,000,000,0001 lakh=1,00,000So, 1 billion = 10,000&#215;(1,00,000)1 billion =10,000 lakhs

Question 10

Place commas correctly and write the numerals.Seven crore fifty two-lakh twenty one thousand three hundred two.

Accepted Answer

$7,52,21,302$.