Simple Arithmatic

# Arithmetic & Mental Ability – 33 If South East become North, North East become West and so on, then what will West become?

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The average of runs of a cricket player of 10 innings was 32. How many runs must be make in his next innings, so as to increase his average of runs by 4?
a) 76
b) 70
c) 4
d) 2

The ratio of the first and second class fares between two railway stations is 4:1 and that of the number of passengers travelling by first and second classes is 1:40. If on a day ₹1100 are collected as total fare, the amount collected from the first class passengers is
a) ₹ 315
b) ₹ 275
c) ₹ 137.50
d) ₹ 100

Find the wrong term in the series 2, 10, 50, 500, 1000
a) 2
b) 1000
c) 50
d) 500

If 21 cows eat equal to 15 oxen, how many cows will eat equal to 25 oxen?
a) 30 cows
b) 32 cows
c) 35 cows
d) 38 cows

Two persons starting from the same place walk at a rate of 5kmph and 5.5kmph respectively. What time will they take to be 8.5km apart, if they walk in the same direction?
a) 17 hrs
b) 22 hrs
c) 25 hrs
d) 12 hrs

If South East become North, North East become West and so on, then what will West become?
a) North East
b) South East
c) North West
d) None of the above

If Rs. 10 be allowed as true discount on a bill of Rs. 110 due at the end of a certain time, then the discount allowed on the same sum due at the end of double the time is:
a) Rs. 20
b) Rs. 21
c) Rs. 22
d) Rs. 18.33

In what time will Rs. 1000 amount to Rs. 1331 at 20% per annum compounded half yearly?
a) 1 1/4 years
b) 3 years
c) 3/2 years
d) 4 years

Six friends A, B, C, D, E and F are sitting a row facing East. C is between A and E, B is just to the right of E but left of D. F' is not at the right end. Who is between B and C?
a) A
b) D
c) E
d) F

The slant height of a right circular cone is 10 m and its height is 8 m. Find the area of its curved surface.
a) 30 m2
b) 40 m2
c) 60 m2
d) 55 m2

How many even numbers are there in the following series of numbers each of which is preceded by an odd number but not followed by an even number 5 3 4 8 9 7 1 6 5 3 2 9 8 7 3 5
a) 1
b) 2
c) 3
d) 5

The average of all odd numbers less than 100 is
a) 49.5
b) 50
c) 50.5
d) 51

If 3=0, 4=4, 5=10, 6=18, then 7= …..
a) 21
b) 28
c) 35
d) 42

A motorist covers a distance of 39km in 45min by moving at a speed of x kmph for the first 15min, then moving at double the speed for the next 20 min, and then again moving at his original speed for the rest of the journey. Find x.
a) 60 km/h
b) 48 km/h
c) 36 km/h
d) 58 km/h

At 3 o’clock the minute hand of a clock points the North East then hour hand will point towards the
a) South
b) South West
c) North West
d) South East

Average weight of 8 students is increased by 1 kg. When a student whoes weight 60 kg is replaced by a new student, find the weight of the new student.
a) 68 kg
b) 69 kg
c) 67 kg
d) 66 kg

In how many different ways can the letters of the word SOFTWARE be arranged in such a way that the vowels always come together?
a) 13440
b) 1440
c) 360
d) 4320

0.002 x 0.5 = ?
a) 0.0001
b) 0.01
c) 0.001
d) 0.1

The price of article has been increased by 25% in order to restore it to the original price, the new price must be increased by
a) 3313%
b) 1119%
c) 9711%
d) 6623%

The sum of two digits of a number is 15. If 9 is added to the number, the digits are interchanged. What is the number?
a) 69
b) 87
c) 96
d) 78

1, 4, 9, 16, 20, 36, 49 (Odd man out)
a) 1
b) 9
c) 20
d) 49

The true discount on a bill of Rs. 540 is Rs. 90. The banker's discount is
a) Rs. 60
b) Rs. 108
c) Rs. 110
d) Rs. 112

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

The percentage increase in the area of a rectangle, if each of its sides is increased by 20% is:
a) 40%
b) 42%
c) 44%
d) 46% 