Arithmetic PYQ — Page 2

A sum of money becomes thrice of itself in 20 years. Find the simple interest rate per annum?

If P: Q: R = 2:3:4, then find: $\frac{P}{Q}:\frac{Q}{R}:\frac{R}{P}$

A and B, working separately can do a piece of work in 12 days and 20 days respectively. If they work alternately, beginning with A, then in how many days can the work be completed?

By selling 32 apples for Rs 30, a man loses 25%. How many apples should be sold for Rs 24, to gain 20% in the transaction?

A certain sum becomes 3-fold at 4% annual rate of interest. At what rate, will it become 6-fold?

Find out the median of the following frequency distribution: | Variable | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | Total | |---|---|---|---|---|---|---|---|---|---| | Frequency | 5 | 7 | 11 | 9 | 8 | 7 | 3 | 5 | 55 |

A boy is running at a speed of p km/hr to cover a distance of 1 km. But, due to the slippery ground, his speed is reduced by q km/hr (p>q). If he takes r hours to cover the distance, then

The simple interest on Rs 7200 at 14% per annum for 7 years is:

Read the information given in the table carefully and answer the question that follows: NUMBER OF CALCULATORS SOLD BY SHOPS P, Q, R, & S IN JUNE, JULY AND AUGUST | STATIONERY SHOP | JUNE | JULY | AUGUST | |-----------------|------|------|--------| | P | 112 | 100 | 130 | | Q | 100 | 88 | 124 | | R | 110 | 80 | 46 | | S | 96 | 94 | 86 | (A) The difference between the total number of calculators sold by shops P and Q together in August and the number of calculators sold by shops R and S together in June is 42 (B) The average number of calculators sold by Shop S in the three months is 92 (C) The respective ratio between the total number of calculators sold by shops P and Q in July and the total number of calculators sold by shop Q in August is 45 : 31 Choose the correct answer from the options given below:

(A) If a product's price is decreased by 25 % and then increased by 20 %, then the net change in the price of the product, is : decrease by 10% (B) If a product's price is increased by 15 % and then again increased by 20 %, then the net change in the price of the product, is : Increase by 38 % Choose the correct option(s):

A female deposit 10% of her salary in PF. She saves 30% of the remaining. The ratio of her expense on medicine and groceries is 3/4 of the remaining salary after saving. If her expenses on the medicine is Rs 2700, find the monthly salary.

Consider the following distribution. | Class Interval | 0-20 | 20-40 | 40-60 | 60-80 | 80-100 | |---|---|---|---|---|---| | Frequency | 17 | 28 | 32 | f | 19 | f the mean of the above distribution is 50, find the value of f.

If in a class, 10 % of the girls are equal to one-fourth of the boys in the school, then the ratio of girls to the boys in the school is?

P and Q together can do a job in 6 days. Q and R can finish the same job in 60/7 days. P started the work and worked for 3 days. Q and R continued for 6 days and finish the work. Then, the difference of days in which R and P , independently can complete the job is:

Read the information given below carefully and answer the question that follows: (A) If the mean of 5 numbers is 15 and then if 27 is included to the numbers, then the mean of the 6 numbers shall be 17 (B) The mean of marks of 300 students is 60, the mean of the top 100 students' marks is 80 and the mean of the last 100 students is 50, then the mean of the marks of the rest of the 100 students of the group is 60. (C) The mean and median of 5 observations is 9 and 8 respectively, if 1 is subtracted from each observation, then the new mean and median shall be 8 and 7 respectively Choose the correct answer from the options given below:

If m is proportional to n and m = 5 when n =4, then what is the value of m when n = 18?

In an examination, out of 480 students, 85 % of girls and 70 % of boys pass. How many boys appeared for the examination, if the total pass percentage of the examination is 75 %?

Two cyclists, k kilometers apart, and starting at the same time, would be together in r hours if they traveled in the same directions, but would pass each other in t hours if they travelled in opposite directions. The ratio of the speed of the faster cyclist to that of the slower is:

A and B can complete a job in 24 days working together. A alone can complete it in 32 days. Both of them worked together for 8 days and then A left. The number of days B will take to complete the remaining job is:

The simple interest on a certain sum of money at 5% per annum for 4 years and 3 years differs by Rs. 42. What is the sum?

Ananyaa travels a certain distance at a speed of 3 kmph and reaches her destination late by 15 minutes. If she travels at a speed of 4 kmph, she reaches her destination 15 minutes earlier. Find the distance that Ananyaa is traveling to reach her destination.

If a saree is sold for Rs. 2880, the seller will incur a loss of 10%. At what price should he sell it to gain a profit of 20%?

One-half of a certain number is equal to 65% of the second number. What is the ratio of the first number to second number?

The ratio of speeds of a train and a car is 16:15, respectively. A bus covers a distance of 480 km in 8 hours. If the speed of the bus is 3/4th of the speed of the train, then the distance covered by the car in 6 hours is: