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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 Sams mother is 5 times older than her son. After 10 years mother is thrice the sons age .The present age of Sam is
Options :
Answer : D
Explanation
Let Sams 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 Sams age is 30
Q 2 - In a leading MNC, there are 51 male employees who are over 150 cm tall. If these constitute three-fourths of the male employees and the total number of male employees is two-thirds of the total number of employees in the class, what is the number of female employees in the class?
Options :
Answer : D
Explanation
Let the number of male employees be x. Then, (3/4) x = 51 or x = 51 × (4/3) = 68.If total number of students is y, then (2/3) y = 68 or y = 68 × (3/2) = 72.Therefore Number of females in the MNC = (72 - 68) = 4.
Q 3 - Anurag is three times as old as Baibhav. Cindy was twice-as old as Anurag four years ago. In four years' time, Anurag will be 31. What is the present age of Baibhav?
Options :
Answer : D
Explanation
As from the question we have,
Anurag = 3Baibhav --- (i)
Cindy - 4 = 2(Anurag+4) ---(ii)
Also, Anurag + 4 = 31
or Anurag = 31-4 = 27
Putting Anurag = 27 in (i) we get
Baibhav = 9 years.
Q 4 - Sabita and Ranjita are working for an MNC at the Petronas towers and to reach different floors of the same office, they use the elevators. Sabita gets on the lift at the 11th floor of a building and rides up at the rate of 57 floors per minute. At the same time, Ranjita gets on an elevator at the 51st floor of the same building and rides down by 63 floors in every minute. The question is if these employees will continue to move at such rates, then at which floor will their paths cross
Options :
Answer : D
Explanation
Let path crossed after x minutes
11x + 57x = 51-63x
x = 1/3
Floor covered by Sabita in 1/3 min = 1/3 × 57=19
So path crossed = 11 + 19 = 30
Q 5 - Suraj is a businessman and for change note purposes, he went to Reserve Bank and he got Rs. 480 with the values consisting of Rs. 10 notes, Rs. 5 notes, and Rs. 1 notes. The number of notes from each category is equal. What is the total number of notes that he has?
Options :
Answer : D
Explanation
Let number of notes of each value be z. Then, 10z + 5z + z = 480. If we will solve it then z = 90. Hence option D is the answer.
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 - When Raghav Swain was born, his father Harivansh Swain was 32 years older than his brother Ranjit and his mother Urmila was 25 years older than his sister Sharmistha. If Ranjit is 6 years older than Rahul and Mrs Urmila Swain is 3 years younger than Mr. Harivansh, how old was Sharmistha when Rahul was born?
Options :
Answer : A
Explanation
When Rahul was born,
his brother Ranjits age = 6 years,
his father Harivanshs age = ( 6 + 32 ) = 38 years.
His mother Urmilas age = ( 38 - 3) years = 35 years.
His sister Sharmisthas age = ( 35 - 25 ) years = 10 years.
Hence, option A.
Q 8 - Sri Uday Corporation is a woman centric corporation which adopts those women and girls who are helpless. If 5 women or 8 girls of that corp. can do a work in 84 days. In how many days can 10 women and 5 girls can do the same work?
Options :
Answer : C
Explanation
5 women or 8 girls can do the work in 84 days.
1 woman can do the work in 5 × 84 = 420 days.
1 womans 1 day work = 1/420
1 girl can do the work in 8 × 84 = 672 days.
1 girls 1 day work = 1/672
Work done in one day by 10 woman and 5 girls would be
$10*\frac{1}{420}+5*\frac{1}{672} \: = \: \frac{1}{32}$
The total amount of time taken would be the reciprocal of the total work done = 32 days.
Q 9 - Mehendi plucked 175 flowers and Pulak plucked 225 flowers. If flowers are to be placed in 5 threads. Then each thread will contain how many flowers in it?
Options :
Answer : B
Explanation
175 + 225 = 400. 400/5 = 80.
Q 10 - In five different days in the month of August the amount of rain in Jagatsinghpur district is 19 cm, 22 cm, 54 cm, 12 cm, and 32 cm. Find out the average.
Options :
Answer : C
Explanation
(19 + 22 + 54 + 12 + 32)/5 = 139/5 = 27.8 cm.