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.

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 :

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 - In Orissa SSC exam, Prakash has done double as many sums wrong as he got it correct. If he attempted 27 sums in all, how many did he solve correctly?

Options :

Answer : A

Explanation

Suppose Prakash got q sums right and 2q sums wrong, then,

q + 2q = 27

3q = 27

q = 9

Q 3 - The ratio between the speeds of two trains from Bhubaneswar and Kolkata is 7: 8. If the second train that is the train from Kolkata runs 220 kms in 2 hours, then the speed of the first train which is from Bhubaneswar is

Options :

Answer : C

Explanation

According to the question, let’s take the speed of two trains be 7x and 8x km/hr.

Then, 8x = (220/2) = 110

x = (110/8) = 13.75

Hence, speed of Bhubaneswar train = (7 × 13.75) km/hr = 96.25 km/hr.

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 :

Answer : B

Explanation

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

Q 5 - In a cards game which hold regularly on roof top each night, Saroj holds 13 cards of four suits. Among them 6 hold cards are of red and 7 hold cards are of black colour. If it is found that there are double as many diamonds as spades and double as many hearts as diamonds. How many clubs does Saroj hold?

Options :

Answer : C

Explanation

Saroj holds 6 number of clubs in the game.

Q 6 - There are 75 coins in a bag which contains only 25 paise and 50 paise coins. The value of the coins is 25. Find the numbers of 25 paise coins.

Options :

Answer : B

Explanation

Let the number of 25 paise coins be x. Then number of 50 paise coins will be (75-x).

X × 0.25 + (75-X) × 0.50 = 25

0.25X + 37.50 - 0.50x = 25

0.25x = 12.50

X = 12.50/0.25 = 50

Q 7 - Five bells in Oregon begin to ring together and then each bell rings at different intervals. They ring respectively at intervals of 6, 5, 7, 10 and 12 seconds. In one hour how many times they will ring together if the one at the start is excluded.

Options :

Answer : D

Explanation

If LCM will be taken then we can find that they will ring together in every 7 seconds and the number of times they will ring in an hour is 8 times.

Q 8 - Rajdhani express runs from Bhubaneswar to Delhi. At some point during the journey it covers a distance in 50 min, if it runs at a speed of 48kmph on an average. The speed at which Rajdhani express must run to reduce the time of journey to 40min will be

Options :

Answer : B

Explanation

Time = 50/60hr = 5/6hr Speed = 48 kmph distance = S × T = 48 × 5/6 = 40 km time = 40/60hr = 2/3hr New speed = 40 × 3/2 kmph = 60kmph

Q 9 - Akshay takes 8 hours to do a job. Ahmed takes 10 hours to do the same job. How long it take both Akshay and Ahmed, working together but independently, to do the same job?

Options :

Answer : A

Explanation

Akshay's one hour work = 1/8. Ahmed's one hour work = 1/10. (Akshay + Ahmed)'s one hour work = 1/8 + 1/10 = 9/40. Both Akshay & Ahmed can finish the work in 40/9 days.

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

Options :

Answer : A

Explanation

50 m/s = 50 × 18/5 = 180 kmph.

reasoning_arithmetical.htm