Arithmetical Reasoning Online Quiz



Following quiz provides Multiple Choice Questions (MCQs) related to Arithmetical Reasoning. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.

Questions and Answers

Q 1 - Ten years ago Sam’s mother is 5 times older than her son. After 10 years mother is thrice the son’s age .The present age of Sam is

Options :

A - 90

B - 30

C - 25

D - 14

Answer : D

Explanation

Let Sam’s age 10 years ago is = x,

Then mother age = 5x

After 10 years, or after 20 years,

5x + 20 = 3(x+20)

X = 20, Now Sam’s age is 30

Q 2 - Ramesh’s salary as a waiter consists of his basic salary and tips from customers. During one week his tips were 3/4 of his basic salary. What fraction of his income came from tips?

Options :

A - 1/2

B - 6/2

C - 21/14

D - 3/7

Answer : D

Explanation

Let basic salary = z, tips = 3z/4

Total income = z + 3z/4 = 7z/4

Required fraction = 3z/4 / 7z/4 = 3/7

Q 3 - In Webster club which contains 15 people, some read Hindi and some read Odia while 3 of them read none of these two. How many of them read Hindi and Odia?

Options :

A - 12

B - 6

C - 5

D - 9

Answer : A

Explanation

From 15, 3 people read none so left 12 will read Hindi and Odia.

Q 4 - Jitkumar is a student who studies in a residential college near the Pallikal hills. In a quarterly mathematics exam, Jit got twice as many sums wrong as he got right. If Jit has attempted 48 sums in all then how many did he solve correctly?

Options :

A - 15

B - 16

C - 17

D - 18

Answer : B

Explanation

Suppose Jit got x sums right and 2x sums wrong. Then, x + 2x = 48 3x = 48 x = 16.

Q 5 - A certain number of students from GR Institute of Commerce in Noida decided to go on a picnic and they have planned to spend Rs. 96 on food. Four of them, however, did not turn up because of familiar problems and health issues. So, other students who have no problems or excuses to go to picnic have decided that each will spend four rupees extra. Then find out the total number of students who have attended the picnic.

Options :

A - 5

B - 7

C - 8

D - 10

Answer : C

Explanation

96/x - 4 – 96/x = 4 X = 12

Required number = 12 - 4 = 8.

Q 6 - A is thrice good workman as B and therefore is able to finish the work 60 days less than B. Working together they will finish it in how many days?

Options :

A - 20

B - 25

C - 14

D - 22 ½

Answer : D

Explanation

Let B takes = x days

A takes = (x-60) days.

Work done by A in 1 day = 3 times work done by B in 1 day

1/(3X-60) = 90A + B = 1/30 + 1/90 = 2/45 = 22 ½ days

Q 7 - Our PM has initiated start up India campaign for those who want to become an entrepreneur. Sujit Kumar is an enterprising businessman and he earns an income of Re. 1 on the first day of his business in this campaign. On every alternate day, Sujit earns an income which in value is just double of that made on the previous day. One the 10th day of business his income is

Options :

A - Rs.10

B - Rs.102

C - Rs. 210

D - Rs.29

Answer : D

Explanation

Rs 29 is the correct answer, hence, option D is correct.

Q 8 - P is able to complete a certain task in 6 days and Q can do it within 8 days. P and Q agreed to do the task together for Rs. 4000. R joined them and they finished the task within 3 days. How much is to be paid to R?

Options :

A - Rs.300

B - Rs.700

C - Rs.400

D - Rs.500

Answer : D

Explanation

$Work \: done \: by \: R \: in \: one \: day \: = \: \frac{1}{3} - \lgroup\frac{1}{6} + \frac{1}{8}\rgroup = \frac{1}{3} - \frac{7}{24} = \frac{1}{24}$

$P's share \: : \: Q's share \: : \: R's Share \: = \: \frac{1}{6} : \frac{1}{8} : \frac{1}{24} = 4 \: : \: 3 \: : \: 1$

$\therefore \: R's \: share \: for \: 3 \: days \:= \: Rs.\lgroup3*\frac{1}{24}*4000\rgroup \: = \: Rs.500.$

Q 9 - Mohasin and Javed work for LPN cement company. Mohasin can do a piece of work in 7 days working for 9 hours each day and Javed alone can do it in 6 days working for 7 hours in each day. How long will both Mohasin and Javed take to complete the job working together 8 2/5 hours a day?

Options :

A - 3

B - 4

C - 5

D - 6

Answer : A

Explanation

Mohasin can complete the work in (7 × 9) = 63 days Javed can complete the work in (6 × 7) = 42 days

Mohasin’s one hour’s work = 1/63 and Javed’s one hour work = 1/42

(Mohasin + Javed)’s one hour work = (1/63) + (1/42) = 5/126 Therefore, Both Mohasin and Javed can finish the work in 126/5 hours.

Number of days of 8 2/5 hours each = (126 × 5/(5 × 42)) = 3 days

Q 10 - A maglev train moves with a speed of 50 m/s. Find its speed in kmph.

Options :

A - 180

B - 190

C - 178

D - 156

Answer : A

Explanation

50 m/s = 50 × 18/5 = 180 kmph.

reasoning_arithmetical.htm
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