Arithmetic PYQ — Page 4

The age distribution of 40 children is as follows | Age (in yr.) | 5 - 6 | 6 - 7 | 7 - 8 | 8 - 9 | 9 - 10 | 10 - 11 | |---|---|---|---|---|---|---| | No. of children | 4 | 7 | 9 | 12 | 6 | 2 | Consider the following statements in respect of the above frequency distribution. (A) The median of the age distribution is 7 yr. (B) 70% of the children are in the age group 6-9 yr. (C) The modal class of the children is 8-9 yr. Which of the above statements are true? Choose the correct answer from the options given below:

Consider the compound interest in the following cases: (A) The compound interest on Rs 16000 at 20% per annum for 9 months, compounded quarterly is Rs. 2500 (B) The compound interest on Rs 2800 at 10% per annum for 18 months is Rs. 434. Choose the correct statement(s):

The monthly salary of A, B and C are in the ratio 2:3: 5. If C's monthly salary is Rs.1200 more than that of A, then B's annual salary is:

Profit earned by selling an article for Rs.1060 is 20% more than the loss incurred by selling the article for Rs.950. At what price should the article be sold to earn a 20% profit?

If $\frac{1}{a} : \frac{1}{b} : \frac{1}{c} = 3 : 4 : 2$, then determine a:b:c.

In what time will the simple interest on ₹2200 at 6% per annum be the same as that on ₹1650 at 9% per annum in 10 years?

X sold an article to Y at a profit of 18%. Later on, Y sold it back to X at a profit of 40%, thereby gaining ₹ 118. How much did X pay for the article originally?

The mean of 6 numbers is 19. If two more numbers are included, the mean of the 8 numbers becomes 23. What is the sum of the two included numbers?

8 men and 3 boys together can complete a piece of work in 5 days. If 5 boys can complete the same piece of work in 15 days, in how many days do 5 men complete the same piece of work?

In how many years will a sum of money double itself at 12.5% p.a., at simple interest?

A boat covers 150 km downstream and 40 km upstream in 4 hours while it covers 70 km downstream and 24 km upstream in 2 hours. Determine the velocity of the current?

If $a:b = \frac{12}{5}:\frac{3}{10}$ and $b:c = \frac{7}{9}:\frac{12}{7}$ then $a:c$ is

Match List-I with List-II | List-I | List-II | |---|---| | (A) 37.5% of 64 | (I) 7 | | (B) 14% of 50 | (II) 54 | | (C) 65% of 80 | (III) 24 | | (D) 75% of 72 | (IV) 52 | Choose the correct answer from the options given below:

The median of the given data is: 7, 5, 2, 3, 6, 9, 1

If a certain sum becomes three times in 4 years at compound interest, then in how many years, will it become 9 times?

A cyclist covers a distance of 170 meters in 17 seconds. The time taken by the cyclist to cover the distance of 6 km, shall be how much?

A can do a work in 4 days, B can do same work in 8 days, then the time taken by A and B to do the same work together is:

If selling price of an article is $\frac{7}{6}$ of its cost price. Then the profit percentage in the transaction is:

P can build a wall in the same time in which Q and R together can do it. If P and Q together could do it in 30 days and R alone in 40 days, in what time could Q alone do it?

A motor boat can travel at 15km/hr in still water. It traveled 63 km downstream in a river and then returned taking altogether 10 hr. What is the rate of flow of the river?

There exist three numbers in the ratio of 3 : 2 : 7 such that the sum of their squares is equal to 558. The three numbers will be respectively:

2, 4, 5, 2, 4, 8, 2, 4, 7, 8, 12, 4, The mode of given data is:

The average of marks of 15 papers is 45. The average of marks of the first 8 papers is 48 and that of the last 8 papers is 40. The marks of the eight paper will be:

Read the information given below carefully and answer the question that follows: (A) The mean of 20 observations is 17. On checking, it was found that two observations were wrongly copied as 3 and 6. If the wrong observations are replaced by correct values 8 and 9, then the correct mean will be 16.4. (B) The ratio of $4^{3.5} : 2^5$ is same as 4 : 1 (C) The ratio of 1.5 : 2.5 can also be written as 3 : 5 (D) If : 2A = 3B = 4C, then, A : B : C is equal to 6 : 4 : 3 Choose the correct option: