Number System Miscellaneous Questions for competitive exams in Hindi and English. To excel in competitive exams, it is crucial to not only understand the concepts but also to be able to apply them effectively in solving problems.

**Number System Type 7 : Miscellaneous Questions**

**Question 1:**

Find the value of

मान ज्ञात कीजिए

(1) 90000

(2) 99000

(3) 90900

(4) 99990

###### Show Answer and Solution

=

=

=

=99000

**Question 2:**

Which one of the following numbers is not a square of any natural number ?

निम्नलिखित में से कौन सी संख्या किसी भी प्राकृतिक संख्या का वर्ग नहीं है

(1) 17956

(2) 18225

(3) 63592

(4) 53361

###### Show Answer and Solution

In a perfect square number 2 never comes at the unit’s place.

**Question 3:**

The sum and product of two numbers are 12 and 35 respectively. What will be the sum of their reciprocals?

दो संख्याओं का योग और गुणनफल क्रमशः 12 और 35 है। उनके व्युत्क्रमों का योग क्या होगा?

(1)

(2)

(3)

(4)

###### Show Answer and Solution

Let the two numbers be x and y.

x + y = 12 and xy = 35

**Question 4:**

380 mangoes are distributed among some boys and girls who are 85 in number. Each boy gets four mangoes and each girl gets five. The number of boys is

85 की संख्या वाले कुछ लड़के और लड़कियों में 380 आम बांटे गए। प्रत्येक लड़के को चार आम मिलते हैं और प्रत्येक लड़की को पाँच। लड़कों की संख्या है

(1) 15

(2) 38

(3) 40

(4) 45

###### Show Answer and Solution

Let number of boys =x and number of girls = 85 –x

According to the question, x × 4 + (85 –x) × 5 = 380

4x + 425 – 5x = 380

x = 45

**Question 5:**

On multiplying a number by 7, all the digits in the product appear as 3’s. the smallest such number is

किसी संख्या को 7 से गुणा करने पर गुणनफल के सभी अंक 3 के रूप में प्रकट होते हैं। ऐसी सबसे छोटी संख्या है

(1) 47649

(2) 47719

(3) 47619

(4) 48619

###### Show Answer and Solution

(3) Let the smallest number be x.

x×7 = 33333….

x = = 47619

Number System Questions for Competitive Exams – Online Study Test

- Type 1 :Smallest and Largest Fraction Questions for Competitive Exams
- Type 2 :Addition, Subtraction, Multiplication and Division Questions for Competitive Exam
- Type 3 :Fraction Questions for Competitive Exams
- Type 4 :Ascending and Descending Order Questions for Competitive Exams
- Type 5 :Unit Digit Questions for Competitive Exams
- Type 6 :Consecutive Numbers Questions for Competitive Exams
- Type 7 :Number System Miscellaneous Questions