301 Moved Permanently - Free Printable

Let's solve each question from the Number System Worksheet-2 step by step and explain the reasoning.

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(1) 1 million in Indian system is equal to

(A) 1 lakh
(B) 10 lakh
(C) 1 crore
(D) None

✔ Answer: (B) 10 lakh

Explanation:
In the Indian number system:
- 1 lakh = 100,000
- 1 million = 1,000,000

So,
1 million = 1,000,000 = 10 × 100,000 = 10 lakh

> ✔ So, correct answer is (B)

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(2) I daily walk 2 kms, how many meters do I walk from Monday to Friday.

(A) 1000
(B) 100
(C) 10
(D) 10000

✔ Answer: (D) 10000

Explanation:
- Daily walk = 2 km = 2000 meters
- Days from Monday to Friday = 5 days
- Total distance = 2000 m/day × 5 = 10,000 meters

> ✔ So, correct answer is (D)

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(3) I buy 500 ml milk from milkman, how much milk do I buy from him from Monday to Sunday?

(A) 35000 ml
(B) 1000 ml
(C) 50000 ml
(D) 3.5 l

✔ Answer: (C) 50000 ml

Explanation:
- Daily milk = 500 ml
- Days = 7 (Monday to Sunday)
- Total = 500 × 7 = 3500 ml

Wait! Let's check:

500 × 7 = 3500 ml, not 50000.

But option (C) says 50000 ml — that’s wrong.

Let’s recheck options:
- (A) 35000 ml → too high
- (B) 1000 ml → too low
- (C) 50000 ml → way too high
- (D) 3.5 l → 3.5 liters = 3500 ml

Ah! So 3500 ml = 3.5 liters

So correct value is 3500 ml, which is 3.5 l

But option (A) is 35000 ml → incorrect
Option (D) is 3.5 l → correct

Wait — 3.5 l = 3500 ml, yes.

But we calculated: 500 ml × 7 = 3500 ml = 3.5 l

So (D) 3.5 l is correct.

But let’s see the options again:

(A) 35000 ml
(B) 1000 ml
(C) 50000 ml
(D) 3.5 l

So (D) 3.5 l is correct.

But why isn’t (A) 3500 ml listed?

It's not listed, but (D) is 3.5 l, which equals 3500 ml.

✔ So correct answer is (D)

> Note: 3500 ml = 3.5 liters → so (D) is correct.

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(4) Difference of 500 and 200 in roman numeral is

(A) C
(B) CCC
(C) MMM
(D) D

✔ Answer: (B) CCC

Explanation:
- 500 - 200 = 300
- Roman numeral for 300 = CCC
(C = 100 → CCC = 100 + 100 + 100 = 300)

✔ So, answer is (B)

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(5) If a girl is 16 years old, how will her age be written using roman numerals?

(A) VII
(B) XVI
(C) LX
(D) XL

✔ Answer: (B) XVI

Explanation:
- 16 = 10 + 6 = X + VI = XVI

> ✔ So, correct answer is (B)

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(6) The number obtained when 144 is divided by 12 in roman numeral is:

(A) X
(B) VII
(C) VIII
(D) XII

✔ Answer: (A) X

Explanation:
- 144 ÷ 12 = 12
- Roman numeral for 12 = XII

Wait! But option (D) is XII, so is it (D)?

Yes, 12 = XII

But look at the options:
(A) X = 10
(B) VII = 7
(C) VIII = 8
(D) XII = 12

So 144 ÷ 12 = 12 → XII

✔ So correct answer is (D)

> Wait — earlier I said (A), but that was a mistake.

Correct: (D) XII

✔ So, answer is (D)

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(7) A lady bought 2 kg of fruits and her neighbor bought 500 gm fruits, who buy more fruits?

(A) The lady
(B) the neighbor
(C) Both
(D) None

✔ Answer: (A) The lady

Explanation:
- 2 kg = 2000 grams
- Neighbor bought 500 gm
- 2000 > 500 → Lady bought more

✔ So, answer is (A)

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(8) In four digit number, if we want to use digit 9 one time, where should we keep it to make a largest number.

(A) At ones place
(B) At hundred place
(C) At thousand place
(D) It is not possible

✔ Answer: (C) At thousand place

Explanation:
To make the largest number, the highest digit should be placed at the highest place value.

- Thousands place is the highest in a 4-digit number.
- So putting 9 at thousand place gives maximum value (e.g., 9000)
- Putting at hundreds → 8900 max
- So best is thousand place

✔ Answer: (C)

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(9) An eight digit number starts with _______ place in Indian number system.

(A) Ten lakh
(B) Crore
(C) Ten crore
(D) Ten million

✔ Answer: (B) Crore

Explanation:
In Indian number system:

| Place Value | Number |
|------------|--------|
| Ones | 1 |
| Tens | 10 |
| Hundreds | 100 |
| Thousands | 1,000 |
| Ten thousands | 10,000 |
| Lakhs | 1,00,000 |
| Ten lakhs | 10,00,000 |
| Crore | 1,00,00,000 |

An eight-digit number ranges from 10,000,000 to 99,999,999

- 10,000,000 = 1 crore
- So the first digit is in the crore place

✔ So, answer is (B) Crore

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✔ Final Answers:

| Q.No | Answer |
|------|--------|
| (1) | B |
| (2) | D |
| (3) | D |
| (4) | B |
| (5) | B |
| (6) | D |
| (7) | A |
| (8) | C |
| (9) | B |

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✔ Summary of Explanations:

1. 1 million = 10 lakh → (B)
2. 2 km/day × 5 days = 10 km = 10,000 m → (D)
3. 500 ml × 7 = 3500 ml = 3.5 l → (D)
4. 500 - 200 = 300 = CCC → (B)
5. 16 = XVI → (B)
6. 144 ÷ 12 = 12 = XII → (D)
7. 2 kg = 2000 g > 500 g → (A)
8. Max number → 9 at thousand place → (C)
9. 8-digit number starts at Crore → (B)

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