Simple Arithmatic

# Arithmetic & Mental Ability – 1

A can do 1/3 of the work in 5 days and B can do 2/5 of the work in 10 days. In how many days both A and B toether can do the work?

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The largest 4 digit number exactly divisible by 88 is:
a) 9944
b) 9768
c) 9988
d) 8888

A walks from P to Q @ 3 km/hr and from Q to P @ 6 km/hr. What is his average speed ?
a) 4.5 km/hr
b) 5 km/hr
c) 5.5 km/hr
d) 4 km/hr

Find the next term of the series 0, 2, 3, 5, 8, 10, 15, 17, 24, 26
a) 28
b) 30
c) 32
d) 35

If PARROT=123345 and SOAT=6425 then how would ROAST be written in that same code language
a) 32456
b) 32564
c) 34625
d) 34265

A can do 1/3 of the work in 5 days and B can do 2/5 of the work in 10 days. In how many days both A and B toether can do the work?
a) 9 3/8 days
b) 8 2/3 days
c) 8 3/5 days
d) 9 3/5 days

Avinash invested an amount of Rs. 25,000 and started a business. Jitendra joined him after one year with an amount of Rs. 30,000. After two years from starting the business they eamed a profit of Rs. 46,000. What will be Jitendra’s share in the profit?
a) Rs. 14,000
b) Rs. 12,000
c) Rs. 17,250
d) Rs. 20,000

How many pairs of letters are there in the word ‘CHANNEL’ which has as many letters between them in the word as in English alphabet
a) one
b) two
c) three
d) more than three

A towel, when bleached, was found to have lost 20% of its length and 10% of its breadth. The percentage of decrease in area is:
a) 10%
b) 10.08%
c) 20%
d) 28%

If the simple interest on a sum of money for 2 years at 5% per annum is Rs. 50, what is the compound interest on the same at the same rate and for the same time?
a) Rs. 51.25
b) Rs. 52
c) Rs. 54.25
d) Rs. 60

Twenty women can do a work in sixteen days. Sixteen men can complete the same work in fifteen days. What is the ratio between the capacity of a man and woman?
a) 3:02
b) 4:03
c) 5:03
d) 3:04

In how many ways 4 boys and 3 girls can be seated in a row so that they are alternate.
a) 144
b) 288
c) 12
d) 256

Ramesh walks 10m Eastward, then turns right and walks 10m. He then again turns right and walks 10m. He takes a 45° degree turns leftward and walks straight. In which direction is he walking now
a) North-west
b) South-east
c) South-west
d) North-east

A merchant gains 25% when he sold an article for Rs. 240. How much percent could be gain by selling it for Rs.216.
a) 12
b) 15 1/2
c) 12 1/2
d) 20

Two trains 126 m and 114 m long are running in opposite directions, one at the rate of 30kmph and another one at 42kmph. From the moment they meet will cross each other in
a) 12 s
b) 14 s
c) 16 s
d) 18 s

10 students are to be seated in two rows equally for the Mock test in a room. There are two sets of papers, Code A and Code B. each of two rows can have only one set of paper but different that from other row. In how many ways these students can be arranged ?
a) 2775600
b) 125600
c) 7257600
d) 1200560

A coin is placed on a plain paper. How many coins of the same size can be placed around it so that each of the coins touches its adjacent ones ?
a) 4
b) 5
c) 6
d) 7

The sum of a pair of positive integers is 336 and their HCF is 21. The number of such possible pair is
a) 2
b) 3
c) 4
d) 5

A clock is fast by 15 minutes in 24 hours. It is made right at 12 noon. What time will it show in ….
a) 4.10 AM
b) 4:15 AM
c) 3:45 AM
d) 4:30 AM

Hari remembers his father’s birthday is between 17th and 20th September. Where as his sister remembers that their father’s birthday is between 18th and 22nd of September. On which day is their father’s birthday?
a) 18th September
b) 19th September
c) 20th September
d) 21st September

The ratio between the speeds of two trains is 7 : 8. If the second train runs 400 km in 4 hours, then the speed of the first train is:
a) 75 km/hr
b) 82,5 Km/hr
c) 90 Km/hr
d) 87.5 Km/hr

An amount of Rs. 680 was invested at 6% rate of interest and another sum of money was invested at 10% interest. If the average interest on the total at the end of the year was 7.5%, how much was invested at 10%?
a) Rs. 480
b) Rs. 412.6
c) Rs. 267.5
d) None of these

The simple interest on Rs.1000 for 146 days at the rate of 10% per annum.
a) 80
b) 45
c) 50
d) 40

A and B started a partnership business investing some amount in the ratio of 3 : 5. C joined then after six months with an amount equal to that of B. In what proportion should the profit at the end of one year be distributed among A, B and C?
a) 3:05:02
b) 3:05:05
c) 6:10:05

A train traveling at 48 kmph completely crosses another train having half its length and traveling in opposite direction at 42 kmph, in 12 seconds. It also passes a railway platform in 45 seconds. The length of the platform is
a) 550m
b) 600m
c) 450m
d) 400m

The difference between compound interest and simple interest at the same rate on Rs. 5000 for 2 year to Rs 72. The rate of interest per annum is
a) 6%
b) 8%
c) 10%
d) 12%

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