Simple Arithmatic

# Arithmetic & Mental Ability – 2 The smallest number that must be subtracted from 1000 to make the resulting number a perfect square is

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Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5?
a) (1/2)
b) (2/5)
c) (8/15)
d) (9/20)

A motor-boat can travel at 10 km/hour in still water. It travelled 91 km downstream in a river and then returned to the same place, taking altogether 20 hours. Find the rate of flow of river.
a) 3 km/hour
b) 4 km/hour
c) 2 km/hour
d) 5 km/hour

If A's salary is 50% more than that of B. Then how much percent is B's salary is less than that of A's salary?
a) 10.33%
b) 33.33%
c) 18.20%
d) 52.33%

The smallest number that must be subtracted from 1000 to make the resulting number a perfect square is
a) 37
b) 38
c) 39
d) 40

A clock strikes 5 taking 8 seconds. In order to strike 9 at the same rate the time taken is
a) 16 seconds
b) 12 seconds
c) 14 seconds
d) 18 seconds

A has 50 coins of 10 paise denominations. While B has 10 coins of 50 paise denominations. C has 20 coins of 25 paise denominations while D has 25 coins of 20 paise denominations. The average number of paise per person is :
a) 450 paise
b) 500 paise
c) 570 paise
d) 540 paise

Albert invested an amount of Rs. 8000 in a fixed deposit scheme for 2 years at compound interest rate 5 p.c.p.a. How much amount will Albert get on maturity of the fixed deposit?
a) Rs. 8600
b) Rs. 8620
c) Rs. 8820
d) None of these

A train can travel 50% faster than a car. Both start from point A at the same time and reach point B 75 kms away from A at the same time. On the way, however, the train lost about 12.5 minutes while stopping at the stations. The speed of the car is:
a) 220 Kmph
b) 200 Kmph
c) 120 Kmph
d) 230 Kmph

An amount is divided among P, Q, R in the ratio 2:5:7. If P's share is Rs.3000 then the difference between the shares of Q and R
a) 3000
b) 3500
c) 1000
d) 1500

In certain code CHANDIGARH is written as DNAHCHRAGI. How is SIKKIM written in that code?
a) TJKJKM
b) TJLLJN
c) MIKKIS
d) KISMIK

Arrange the words in alphabetical order and which will come in the middle? Electric, Elector, Elect, Electrode, Electron
a) Elector
b) Elect
c) Electric
d) Electrode

Arun, Kamal and Vinay invested Rs. 8000, Rs. 4000 and Rs. 8000 respectively in a business. Arun left after six months. If after eight months, there was a gain of Rs. 4005, then what will be the share of Kamal?
a) Rs. 890
b) Rs. 1335
c) Rs. 1602
d) Rs. 1780

In a metro train there are 600 passengers out of which 34% are females. Fare of each male is Rs. 20 and each female's fare is 25% less than each male. What is the total revenue generated by all the passengers together?
a) Rs. 10880
b) Rs. 10980
c) Rs. 10740
d) Rs. 10680

Find the odd-one from the following
a) Kitten
b) goat
c) calf
d) foal

The first republic day of the India was celebrated on 26th January,1950. It was
a) Monday
b) Wednesday
c) Thursday
d) Friday

The product of two numbers is 120 and the sum of their squares is 289 the sum of two numbers is
a) 23
b) 7
c) 13
d) 169

The H.C.F. of two numbers is 11 and their L.C.M. is 7700. If one of the numbers is 275, then the other is:
a) 279
b) 283
c) 308
d) 318

By investing Rs. 1620 in 8% stock, Michael earns Rs. 135. The stock is then quoted at:
a) Rs. 80
b) Rs. 96
c) Rs. 106
d) Rs. 108

What is the day on 1st January 1901?
a) Monday
b) Wednesday
c) Sunday
d) Tuesday

In a 200 metres race A beats B by 35 m or 7 seconds. A”s time over the course is:
a) 40 sec
b) 47 sec
c) 33 sec
d) None of these

A is 50% as efficient as B. C does half of the work done by A and B together. If C alone does the work in 40 days, then A, B and C together can do the work in
a) 15 1/3 days
b) 13 1/3 days
c) 14 1/3 days
d) 12 1/3 days

A man can row at 5 kmph in still water. If the velocity of current is 1 kmph and it takes him 1 hour to row to a place and come back, how far is the place?
a) 2.4 km
b) 2.5 km
c) 3 km
d) 3.6 km

Which is the least number when it is divided by 7, 13 and 28 the remainder becomes 6
a) 365
b) 370
c) 376
d) 388

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 simple interest of a certain amount of money for three years at the rate of 14% per annum in Rs. 235.20. What is the amount
a) Rs. 480
b) Rs. 560
c) Rs. 650
d) Rs. 720 