Arithmetic Reasoning

View in English View in Hindi

If you write down all the numbers from 1 to 100, then how many times do you write 3?

A)
11

B)
18

C)
20

D)
21


Correct Answer :

20


Explanation :

if write down from 1 to 100, there are eleven numbers with 3 as the unit's digit- 3, 13, 23, 33, 43, 53, 63, 73, 83, 93; 33 has two three, and nine numbers with 3 as the ten's digit - 30, 31, 32, 34, 35, 36, 37, 38, 39.

So, required number = 11+ 9= 20.

The total number of digits used in numbering the pages of a book having 366 pages is?

A)
732

B)
990

C)
1098

D)
1305


Correct Answer :

990


Explanation :

Total number of digits= No. of digits in 1- digit page nos.(1 to 9) + No. of digits in 2-digit page nos.(10 to 99) + No. of digits in 3- digit page nos(100 to 999).

First 9 pages having 1 digit nos (1x9=9 digits).
Next 90 pages having 2 digit nos (2 x 90=180 digits).
Remaining 267 pages having 3 digit nos (267x3 = 801 digits)

So total will be = (1 x 9 + 2 x 90 + 3 x 267) = (9 + 180 + 801) = 990.

In a garden, there are 10 rows and 12 coloumns of mango trees. The distance between two trees is 2 meters and a distance of one meter is left from all sides of the boundary of the garden. The length of the garden is?

A)
20m

B)
22m

C)
24m

D)
26m


Correct Answer :

24m


Explanation :

Between 12 mango trees, there are 11 gaps and each gap has 2 metre length. Also, 1metre is left from all sides of the boundary of the garden.

Hence, length of the garden=11×2+1+1=24 meter

A farmer built a fence around his square plot. He used 27 fence poles on each side of the square. How many poles did he need altogether?

A)
100

B)
104

C)
108

D)
110


Correct Answer :

104


Explanation :

Since each pole at the corner i.e. 4 corner ploes of the plot is common to its two sides, so we have :

Total number of poles needed = 27 x 4 - 4 = 108 - 4 = 104.

Which of the following operations will result in 22?

A)
16 / 12 + 8 - 13 * 15

B)
16 - 12 * 8 / 13 + 15

C)
16 * 12 / 8 + 13 - 15

D)
16 + 12 - 8 * 13 / 15


Correct Answer :

16 * 12 / 8 + 13 - 15


Explanation :

16 * 12 / 8 + 13 - 15
=((16*12) / 8) + 13 -15
= 24 + 13 - 15
= 37 - 15
= 22

If 6★5 = 31, 7★8 = 57, 3★4 = 13, then 9★10 = ?

A)
90

B)
91

C)
81

D)
19


Correct Answer :

91


Explanation :

As, 6★5 = 6 * 5 + 1 = 31
7★8 = 7 * 8 + 1 = 57
and 3★4 = 3 * 4 + 1 = 13
Similarly, 9★10 = 9 * 10 + 1 = 91

If 879 = 8, 625 = 1 and 586 = 9 then, 785 = ?

A)
6

B)
7

C)
8

D)
9


Correct Answer :

6


Explanation :

879 => (7 + 9) - 8 = 8
625 => (2 + 5) - 6 = 1
and 586 => (8 + 6) - 5 = 9
Similarly, 785 => (8 + 5) - 7 = 6

If given, 12 (169) 5, 4 (20) 2 and 1 (26) 5 then 7 (--) 3 ?

A)
78

B)
68

C)
58

D)
36


Correct Answer :

58


Explanation :

As, 122 + 52 => 144 + 25 = 169
42 + 22 => 16 + 4 = 20
and 12 + 52 => 1 + 25 = 26
Similarly, 72 + 32 => 49 + 9 = 58

If 6 *8 *3 = 638, 9 *0 *2 = 920, then 5 *7 *4 =?

A)
574

B)
745

C)
475

D)
547


Correct Answer :

547


Explanation :

As, 6 *8 *3 = 638
and 9 *0 *2 = 920
Similarly, 5 *7 *4 = 5 4 7

Latest Updates

Indian Politics

______is an institutional mechanism to provide representation to the states of India?

Books and Authors

Which text is not written by Kalidasa?

Indian Constitution

Which Constitutional Amendment introduced Right to Education as a Fundamental Right?

Indian History

Which animal is engraved on Harappan seals?

Indian Politics

Who is known for initiating electoral reforms in India to ensure free and fair elections?

Indian Constitution

The sequence in which the given terms are mentioned in the preamble to the Constitution of India is?

Which of the following parts of the Constitution of India provides fundamental rights ?

Books and Authors

Who among the following is the author of ‘Politics’?

Which one is the text not written by Abul Fazl?

Which King was the author of Ratnawali, Nagananda, Priyadarsika?

Fill in the blank

Fill in the blanks with the most appropriate preposition in the given sentence.
The class begins _______ 7:30 am _____ the morning.

The workers were so skilled that their _____ was quite visible even to a layman.

Articles

Choose appropriate article for the given sentence:
______ German is ___ easy language to learn for English speaking students.

Synonyms

What will be the synonym of ‘Eradicate’?

What will be the synonym of the word ‘disaster’?

Pipes and Cistern

Three taps A,B and C can fill a tank in 12, 15 and 20 hours respectively. If A is open all the time and B and C are open for one hour each alternatively, the tank will be full in?

Two pipes A and B can fill a tank in 6 hours and 4 hours respectively. If they are opened on alternate hours and if pipe A s opened first, in how many hours, the tank shall be full?

A large tanker can be filled by two pipes A and B in 60 min and 40 min respectively. How many minutes will it take to fill the tanker from empty state if B is used for first half of the time, and A and B fill it together for the other half?

Latest Job Notifications

Banking Jobs

बैंकिंग कार्मिक चयन संस्थान Institute of Banking Personnel Selection(IBPS) - 7855 पद - 29/07/2022 अंतिम तिथि

SSC Recruitment

कर्मचारी चयन आयोग (एसएससी) Staff Selection Commission (SSC) - 1411 पद - 29/07/2022 अंतिम तिथि

Jobs in Rajasthan

राजस्थान अधीनस्थ और मंत्रिस्तरीय सेवा चयन बोर्ड Rajasthan Subordinate and Ministerial Services Selection Board (RSMSSB) - 5546 पद - 22-Jul-2022 अंतिम तिथि

Railway Recruitment

उत्तर मध्य रेलवे भर्ती प्रकोष्ठ Railway Recruitment Cell(NCR) - 1659 पद - 01/08/2022 अंतिम तिथि

Jobs in West Bengal

इंडियन पोस्ट सर्विस Indian Post Service - 2357 पद - 19/08/2021 अंतिम तिथि - पश्चिम बंगाल पोस्टल सर्कल

Banking Jobs

भारतीय स्टेट बैंक State Bank of India(SBI) - 6100 पद - 26/07/2021 अंतिम तिथि - CRPD/APPR/2021-22/10

SSC Recruitment

कर्मचारी चयन आयोग Staff Selection Commission(SSC) - 25271 पद - 31/08/2021 अंतिम तिथि

Jobs in Madhya Pradesh

राष्ट्रीय स्वास्थ्य मिशन मध्य प्रदेश National Health Mission MP(NRHM) - 5215 पद - 22/06/2021 अंतिम तिथि

Jobs in Punjab

पंजाब स्टेट पावर कॉर्पोरेशन लिमिटेड Punjab State Power Corporation Limited (PSPCL) - 2632 पद - 20/06/2021 अंतिम तिथि

Jobs in Chhattisgarh

स्वास्थ्य सेवा निदेशालय, छत्तीसगढ़ Department of Health & Family Welfare, Chhattisgarh - 267 पद - 26/06/2021 अंतिम तिथि